Nissan x trail t31 esm tai lieu sua chua phan 2

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ENGINE SECTION EM ENGINE MECHANICAL A EM C D E CONTENTS MR20DE SPARK PLUG 16 F Exploded View 16 Removal and Installation 16 Inspection 17 G SYMPTOM DIAGNOSIS NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING CAMSHAFT VALVE CLEARANCE 18 NVH troubleshooting Chart Inspection and Adjustment 18 PRECAUTION COMPRESSION PRESSURE 21 Inspection 21 PRECAUTIONS Precaution for Procedure without Cowl Top Cover Precaution Necessary for Steering Wheel Rotation After Battery Disconnect Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" Draining Engine Coolant Disconnecting Fuel Piping Removal and Disassembly Inspection, Repair and Replacement Assembly and Installation Parts Requiring Angle Tightening Liquid Gasket ON-VEHICLE REPAIR 22 PREPARATION EXHAUST MANIFOLD 28 Exploded View 22 Removal and Installation 22 AIR CLEANER AND AIR DUCT 23 Exploded View 23 Removal and Installation 23 Inspection 24 Exploded View 25 Removal and Installation 25 Exploded View 28 Removal and Installation 28 Inspection 29 OIL PAN (LOWER) 31 Exploded View 31 Removal and Installation 32 Inspection 33 M N O P FUEL INJECTOR AND FUEL TUBE 34 Exploded View 34 Removal and Installation 34 Inspection 38 AIR CLEANER FILTER 15 Revision: 2007 October K L DRIVE BELTS 13 Removal and Installation 15 J INTAKE MANIFOLD 25 Special Service Tools Commercial Service Tools 10 Exploded View 13 Checking 13 Tension Adjustment 13 Removal and Installation 13 I DRIVE BELT AUTO-TENSIONER 22 PREPARATION ON-VEHICLE MAINTENANCE 13 H IGNITION COIL, SPARK PLUG AND ROCKER COVER 39 EM-1 T31 Exploded View 39 Removal and Installation 39 SERVICE DATA AND SPECIFICATIONS (SDS) 109 TIMING CHAIN 41 SERVICE DATA AND SPECIFICATIONS (SDS) 109 Exploded View 41 Removal and Installation 42 Inspection 50 CAMSHAFT 52 Exploded View 52 Removal and Installation 52 Inspection 56 OIL SEAL 61 VALVE OIL SEAL 61 VALVE OIL SEAL : Removal and Installation 61 FRONT OIL SEAL 61 FRONT OIL SEAL : Removal and Installation 62 REAR OIL SEAL 62 REAR OIL SEAL : Removal and Installation 62 CYLINDER HEAD 64 Exploded View 64 Removal and Installation 65 Disassembly and Assembly 66 Inspection 70 REMOVAL AND INSTALLATION 73 ENGINE ASSEMBLY 73 Exploded View 73 Removal and Installation 73 Inspection 77 DISASSEMBLY AND ASSEMBLY 78 ENGINE STAND SETTING 78 Setting 78 ENGINE UNIT 79 Disassembly 79 Assembly 79 OIL PAN (UPPER) 80 Exploded View 80 Removal and Installation 81 Inspection 83 CYLINDER BLOCK 84 Exploded View 84 Disassembly and Assembly 85 Inspection 93 HOW TO SELECT PISTON AND BEARING 102 Description .102 Piston .102 Connecting Rod Bearing 103 Main Bearing 105 Revision: 2007 October General Specification 109 Drive Belt 109 Spark Plug 109 Exhaust Manifold 110 Camshaft 110 Cylinder Head 111 Cylinder Block 114 Connecting Rod Bearing 117 Main Bearing 118 QR25DE SYMPTOM DIAGNOSIS 119 NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING 119 NVH Troubleshooting Chart 119 PRECAUTION 121 PRECAUTIONS 121 Precaution for Procedure without Cowl Top Cover 121 Precaution Necessary for Steering Wheel Rotation After Battery Disconnect 121 Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" 121 Draining Engine Coolant 122 Disconnecting Fuel Piping 122 Removal and Disassembly 122 Inspection, Repair and Replacement 122 Assembly and Installation 122 Parts Requiring Angle Tightening 122 Liquid Gasket 123 PREPARATION 124 PREPARATION 124 Special Service Tools 124 Commercial Service Tools 125 ON-VEHICLE MAINTENANCE 128 DRIVE BELTS 128 Exploded View 128 Checking 128 Tension Adjustment 128 Removal and Installation 128 AIR CLEANER FILTER 130 Removal and Installation 130 SPARK PLUG 131 Exploded View 131 Removal and Installation 131 Inspection 131 EM-2 T31 CAMSHAFT VALVE CLEARANCE 133 Inspection and Adjustment 133 COMPRESSION PRESSURE 136 Inspection 136 ON-VEHICLE REPAIR 138 FRONT OIL SEAL : Removal and Installation 170 REAR OIL SEAL 170 REAR OIL SEAL : Removal and Installation 170 REMOVAL AND INSTALLATION 172 EM ENGINE ASSEMBLY 172 Exploded View 138 Removal and Installation 138 Exploded View 172 Removal and Installation 172 Inspection 177 AIR CLEANER AND AIR DUCT 140 DISASSEMBLY AND ASSEMBLY 179 Exploded View 140 Removal and Installation 140 Inspection 141 ENGINE STAND SETTING 179 INTAKE MANIFOLD 142 ENGINE UNIT 181 DRIVE BELT AUTO-TENSIONER 138 Exploded View 142 Removal and Installation 142 Inspection 144 Setting 179 Disassembly 181 Assembly 181 H Exploded View 191 Removal and Installation 192 Disassembly and Assembly 193 Inspection 197 Exploded View 200 Disassembly and Assembly 201 Inspection 208 J HOW TO SELECT PISTON AND BEARING 218 K Description 218 Piston 218 Connecting Rod Bearing 219 Main Bearing 221 L SERVICE DATA AND SPECIFICATIONS (SDS) 225 M SERVICE DATA AND SPECIFICATIONS (SDS) 225 N CAMSHAFT 159 Exploded View 159 Removal and Installation 159 Inspection 164 OIL SEAL 169 VALVE OIL SEAL 169 VALVE OIL SEAL : Removal and Installation 169 FRONT OIL SEAL 169 Revision: 2007 October I CYLINDER BLOCK 200 Exploded View 153 Removal and Installation 153 Exploded View 155 Removal and Installation 155 Inspection 158 F CYLINDER HEAD 191 IGNITION COIL, SPARK PLUG AND ROCKER COVER 153 FUEL INJECTOR AND FUEL TUBE 155 E G OIL PAN (UPPER) AND OIL STRAINER 150 Exploded View 150 Removal and Installation 150 Inspection 152 D Exploded View 182 Removal and Installation 183 Inspection 189 OIL PAN (LOWER) 147 Exploded View 147 Removal and Installation 147 Inspection 149 C TIMING CHAIN 182 EXHAUST MANIFOLD AND THREE WAY CATALYST 145 Exploded View 145 Removal and Installation 145 Inspection 146 A EM-3 General Specification 225 Drive belt 225 Spark Plug 225 Intake Manifold 226 Exhaust Manifold 226 Camshaft 226 Cylinder Head 228 Cylinder Block 230 Main Bearing 233 Connecting Rod Bearing 234 T31 O P NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING [MR20DE] < SYMPTOM DIAGNOSIS > SYMPTOM DIAGNOSIS NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING NVH troubleshooting Chart INFOID:0000000002920806 PBIC3932E Locate the area where noise occurs Confirm the type of noise Specify the operating condition of engine Revision: 2007 October EM-4 T31 NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING [MR20DE] < SYMPTOM DIAGNOSIS > Check specified noise source If necessary, repair or replace these parts A Operating condition of engine Location of noise Type of noise Top of engine Rocker cover Cylinder head Front of engine Front cover Front of engine Reference page EM After warmup When starting When idling When racing While driving Ticking or clicking C A — A B — Tappet noise Valve clearance EM-18 C Rattle C A — A B C Camshaft bearing noise Camshaft journal oil clearance Camshaft runout EM-110 EM-110 D — Piston pin noise Piston to piston pin oil clearance Connecting rod bushing oil clearance EM-114 EM-114 E Piston slap noise Piston to cylinder bore clearance Piston ring side clearance Piston ring end gap Connecting rod bend and torsion EM-114 EM-114 EM-114 EM-114 Connecting rod bushing oil clearance Connecting rod bearing oil clearance EM-114 EM-117 Slap or knock Crankshaft pulley Cylinder block (Side of engine) Oil pan Source of noise Before warmup — Slap or rap A A — — — B B B B A Check item F Knock A B C B B B Connecting rod bearing noise Knock A B — A B C Main bearing noise Main bearing oil clearance Crankshaft runout EM-118 EM-114 B Timing chain and chain tensioner noise Timing chain cracks and wear Timing chain tensioner operation EM-50 EM-42 Drive belt (Sticking or slipping) Drive belt deflection B Drive belt (Slipping) Idler pulley bearing operation B Water pump noise Water pump operation Tapping or ticking A Squeaking or fizzing A Creaking A Squall Creak A: Closely related B: Related A A B B B — — A — C: Sometimes related B B B B B — A A C G H I J K EM-13 L M CO-22 N —: Not related O P Revision: 2007 October EM-5 T31 PRECAUTIONS [MR20DE] < PRECAUTION > PRECAUTION PRECAUTIONS Precaution for Procedure without Cowl Top Cover INFOID:0000000003038258 When performing the procedure after removing cowl top cover, cover the lower end of windshield with urethane, etc PIIB3706J Precaution Necessary for Steering Wheel Rotation After Battery Disconnect INFOID:0000000002920808 NOTE: • This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYSTEM) • Remove and install all control units after disconnecting both battery cables with the ignition knob in the ″LOCK″ position • Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work If DTC is detected, perform trouble diagnosis according to self-diagnostic results For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mechanism is adopted on the key cylinder For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and steering wheel rotation will become impossible If steering wheel rotation is required when battery power is interrupted, follow the procedure below before starting the repair operation OPERATION PROCEDURE Connect both battery cables NOTE: Supply power using jumper cables if battery is discharged Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC″ position At this time, the steering lock will be released Disconnect both battery cables The steering lock will remain released and the steering wheel can be rotated Perform the necessary repair operation When the repair work is completed, return the ignition switch to the ″LOCK″ position before connecting the battery cables (At this time, the steering lock mechanism will engage.) Perform a self-diagnosis check of all control units using CONSULT-III Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" INFOID:0000000003038259 The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision Information necessary to service the system safely is included in the “SRS AIRBAG” and “SEAT BELT” of this Service Manual WARNING: • To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer Revision: 2007 October EM-6 T31 PRECAUTIONS [MR20DE] < PRECAUTION > • Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system For removal of Spiral Cable and Air Bag A Module, see the “SRS AIRBAG” • Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Manual SRS wiring harnesses can be identified by yellow and/or orange harnesses or harEM ness connectors Draining Engine Coolant INFOID:0000000002920810 C Drain engine coolant and engine oil when the engine is cooled Disconnecting Fuel Piping INFOID:0000000002920811 D • Before starting work, check no fire or spark producing items are in the work area • Release fuel pressure before disconnecting and disassembly • After disconnecting pipes, plug openings to stop fuel leakage Removal and Disassembly E INFOID:0000000002920812 • When instructed to use SST, use specified tools Always be careful to work safely, avoid forceful or uninstructed operations • Exercise maximum care to avoid damage to mating or sliding surfaces • Dowel pins are used for several parts alignment When replacing and reassembling parts with dowel pins, check that dowel pins are installed in the original position • Cover openings of engine system with a tape or equivalent, if necessary, to seal out foreign materials • Mark and arrange disassembly parts in an organized way for easy troubleshooting and re-assembly • When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally opposite, and so on If the order of loosening is specified, exactly as specified Power tools may be used in the step Inspection, Repair and Replacement INFOID:0000000002920813 Before repairing or replacing, thoroughly inspect parts Inspect new replacement parts in the same way, and replace if necessary Assembly and Installation G H I J INFOID:0000000002920814 • Use torque wrench to tighten bolts or nuts to specification • When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the ones in center, then ones on inside and outside diagonally in this order If the order of tightening is specified, exactly as specified • Replace with new gasket, packing, oil seal or O-ring • Thoroughly wash, clean, and air-blow each part Carefully check engine oil or engine coolant passages for any restriction and blockage • Avoid damaging sliding or mating surfaces Completely remove foreign materials such as cloth lint or dust Before assembly, oil sliding surfaces well • Release air within route when refilling after draining engine coolant • After repairing, start the engine and increase engine speed to check engine coolant, fuel, engine oil, and exhaust gases for leakage Parts Requiring Angle Tightening K L M N INFOID:0000000002920815 • - Use the angle wrench [SST: KV10112100] for the final tightening of the following engine parts: Camshaft sprocket (INT) bolt Cylinder head bolts Main bearing cap bolts Connecting rod cap bolts Crankshaft pulley bolt (No the angle wrench is required as bolt flange is provided with notches for angle tightening) • Do not use a torque value for final tightening • The torque value for these parts are for a preliminary step • Ensure thread and seat surfaces are clean and coated with engine oil Revision: 2007 October F EM-7 T31 O P PRECAUTIONS [MR20DE] < PRECAUTION > Liquid Gasket INFOID:0000000002920816 REMOVAL OF LIQUID GASKET SEALING • After removing mounting nuts and bolts, separate the mating surface using the seal cutter (SST) and remove old liquid gasket sealing CAUTION: Be careful not to damage the mating surfaces • Tap the seal cutter to insert it (1), and then slide it (2) by tapping on the side as shown in the figure • In areas where the seal cutter (SST) is difficult to use, use a plastic hammer to lightly tap the parts, to remove it CAUTION: If for some unavoidable reason tool such as a screwdriver is used, be careful not to damage the mating surfaces PBIC0275E LIQUID GASKET APPLICATION PROCEDURE Using a scraper, remove old liquid gasket adhering to the liquid gasket application surface and the mating surface • Remove liquid gasket completely from the groove of the liquid gasket application surface, mounting bolts, and bolt holes Wipe the liquid gasket application surface and the mating surface with white gasoline (lighting and heating use) to remove adhering moisture, grease and foreign materials PBIC0003E Attach liquid gasket tube to the tube presser (commercial service tool) Use Genuine Liquid Gasket or equivalent Apply liquid gasket without breaks to the specified location with the specified dimensions • If there is a groove for liquid gasket application, apply liquid gasket to the groove EMA0622D • As for bolt holes, normally apply liquid gasket inside the holes Occasionally, it should be applied outside the holes Check to read the text of this manual • Within five minutes of liquid gasket application, install the mating component • If liquid gasket protrudes, wipe it off immediately • Do not retighten mounting bolts or nuts after the installation • After 30 minutes or more have passed from the installation, fill engine oil and engine coolant CAUTION: If there are specific instructions in this manual, observe them Revision: 2007 October EM-8 SEM159F T31 PREPARATION [MR20DE] < PREPARATION > PREPARATION A PREPARATION Special Service Tools INFOID:0000000002920817 Tool number Tool name Description KV10111100 Seal cutter EM C Removing oil pan (upper and lower) etc D E S-NT046 Disassembling and assembling valve mechanism Part (1) is a component of KV10116200, but Part (2) is not so KV10116200 Valve spring compressor KV10115900 Attachment KV10109220 Adapter F G PBIC1650E KV10112100 Angle wrench H Tightening bolts for main bearing cap, cylinder head, etc I J S-NT014 KV10117100 Heated oxygen sensor wrench Loosening or tightening heated oxygen sensor For 22 mm (0.87 in) width hexagon nut K L NT379 M Removing valve oil seal KV10107902 Valve oil seal puller KV10116100 Valve oil seal puller adapter N O S-NT605 KV10115600 Valve oil seal drift Installing valve oil seal Use side A a: 20 (0.79) dia d: (0.31) dia b: 13 (0.51) dia e: 10.7 (0.421) c: 10.3 (0.406) dia f: (0.20) Unit: mm (in) S-NT603 Revision: 2007 October EM-9 T31 P PREPARATION [MR20DE] < PREPARATION > Tool number Tool name Description EM03470000 Piston ring compressor Installing piston assembly into cylinder bore S-NT044 KV11103000 Pulley puller Removing crankshaft pulley NT676 KV11105210 Stopper plate Fixing drive plate and flywheel ZZA0009D Quick connector release Removing fuel tube quick connectors in engine room (Available in SEC 164 of PARTS CATALOG: Part No 16441 6N210) PBIC0198E Commercial Service Tools INFOID:0000000002920818 Tool name Description Spark plug wrench Removing and installing spark plug PBIC2982E Pulley holder Crankshaft pulley removing and installing ZZA1010D Revision: 2007 October EM-10 T31 ECM [QR TYPE 2] < ECU DIAGNOSIS > DTC*1 Items (CONSULT-III screen terms) Trip MIL Reference page TCS/CIRC — ECQ-528 1217 ENG OVER TEMP × ECQ-529 P1225 1225 CTP LEARNING-B1 × ECQ-569 P1299 1299 CTP LEARNING × ECQ-535 P1320 1320 IGN SIGNAL PRIMARY — ECQ-538 P1564 1564 ASCD SW — ECQ-543 P1572 1572 ASCD BRAKE SW — ECQ-546 P1574 1574 ASCD VHL SPD SEN — ECQ-553 P1610 1610 LOCK MODE — — P1611 1611 ID DISCORD,IMMU-ECM — — P1612 1612 CHAIN OF ECM-IMMU — — CONSULT-III ECM* P1212 1212 P1217 P1614 1614 CHAIN OF IMMU-KEY — — P1615 1615 DIFFERENCE OF KEY — — P1706 1706 P-N POS SW/CIRCUIT × ECQ-555 P1715 1715 IN PULY SPEED — ECQ-558 P1805 1805 BRAKE SW/CIRCUIT — ECQ-560 P2100 2100 ETC MOT PWR-B1 × ECQ-563 P2101 2101 ETC FNCTN/CIRC-B1 × ECQ-565 P2103 2103 ETC MOT PWR × ECQ-563 P2109 2109 CTP LEARNING × ECQ-569 P2119 2119 ETC ACTR-B1 × ECQ-570 P2122 2122 APP SEN 1/CIRC × ECQ-572 P2123 2123 APP SEN 1/CIRC × ECQ-572 P2127 2127 APP SEN 2/CIRC × ECQ-576 P2128 2128 APP SEN 2/CIRC × ECQ-576 P2135 2135 TP SENSOR-B1 × ECQ-580 P2138 2138 APP SENSOR × ECQ-584 *1: 1st trip DTC No is the same as DTC No *2: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN *3: The troubleshooting for this DTC needs CONSULT-III *4: When engine is running, MIL may flash For details, refer toECQ-430, "Diagnosis Description" *5: When the fail-safe operations for both self-diagnoses occur, the MIL illuminates Revision: 2007 October ECQ-632 T31 ENGINE CONTROL SYSTEM SYMPTOMS [QR TYPE 2] < SYMPTOM DIAGNOSIS > SYMPTOM DIAGNOSIS A ENGINE CONTROL SYSTEM SYMPTOMS Symptom Table INFOID:0000000002924950 ECQ SYSTEM — BASIC ENGINE CONTROL SYSTEM C ROUGH IDLE/HUNTING IDLING VIBRATION SLOW/NO RETURN TO IDLE OVERHEATS/WATER TEMPERATURE HIGH EXCESSIVE FUEL CONSUMPTION EXCESSIVE OIL CONSUMPTION BATTERY DEAD (UNDER CHARGE) AM HA 2 4 2 4 4 4 4 1 1 2 2 LACK OF POWER/POOR ACCELERATION AL SPARK KNOCK/DETONATION AK HESITATION/SURGING/FLAT SPOT AJ ENGINE STALL AH AB AC AD AE Fuel pump circuit 1 Fuel pressure regulator system 3 4 Fuel injector circuit 1 Evaporative emission system 3 4 4 4 Positive crankcase ventilation system D E Reference page G H ECQ-600 ECQ-644 ECQ-499 ECQ-416 3 ECQ-368 3 Incorrect ignition timing adjustment 3 1 1 1 ECQ-369 Ignition circuit 1 2 2 2 ECQ-539 2 3 3 3 ECQ-449 ECQ-464, ECQ-469 Mass air flow sensor circuit Engine coolant temperature sensor circuit ECQ-477, ECQ-484 3 2 2 2 Knock sensor circuit Revision: 2007 October 2 ECQ-572, ECQ-576, ECQ-584 ECQ-633 ECQ-486, ECQ-489, ECQ-492, ECQ-155, ECQ-292 ECQ-480, ECQ-502, ECQ-569, ECQ-533, ECQ-580 Throttle position sensor circuit Accelerator pedal position sensor circuit ECQ-565, ECQ-570 Air fuel ratio (A/F) sensor circuit I ECQ-604 Electric throttle control actuator Main power supply and ground circuit F J Incorrect idle speed adjustment Ignition AG HARD/NO START/RESTART (EXCP HA) Air AF AA Warranty symptom code Fuel HIGH IDLE/LOW IDLE SYMPTOM ECQ-506 T31 K L M N O P ENGINE CONTROL SYSTEM SYMPTOMS [QR TYPE 2] < SYMPTOM DIAGNOSIS > HARD/NO START/RESTART (EXCP HA) ENGINE STALL HESITATION/SURGING/FLAT SPOT SPARK KNOCK/DETONATION LACK OF POWER/POOR ACCELERATION HIGH IDLE/LOW IDLE ROUGH IDLE/HUNTING IDLING VIBRATION SLOW/NO RETURN TO IDLE OVERHEATS/WATER TEMPERATURE HIGH EXCESSIVE FUEL CONSUMPTION EXCESSIVE OIL CONSUMPTION BATTERY DEAD (UNDER CHARGE) SYMPTOM AA AB AC AD AE AF AG AH AJ AK AL AM HA Crankshaft position sensor (POS) circuit 2 ECQ-508 Camshaft position sensor (PHASE) circuit ECQ-512 Warranty symptom code Vehicle speed signal circuit ECM Intake valve timing control solenoid valve circuit 3 PNP switch circuit Refrigerant pressure sensor circuit 3 3 3 3 2 3 3 3 Electrical load signal circuit Air conditioner circuit ABS actuator and electric unit (control unit) 3 ECQ-519 ECQ-523, ECQ-523 ECQ-455 ECQ-555 ECQ-605 2 3 3 Reference page ECQ-598 3 HAC-198 BRC-59 - 6: The numbers refer to the order of inspection (continued on next page) SYSTEM — ENGINE MECHANICAL & OTHER Revision: 2007 October ECQ-634 T31 ENGINE CONTROL SYSTEM SYMPTOMS [QR TYPE 2] < SYMPTOM DIAGNOSIS > SYMPTOM Fuel Fuel tank Fuel piping HARD/NO START/RESTART (EXCP HA) ENGINE STALL HESITATION/SURGING/FLAT SPOT SPARK KNOCK/DETONATION LACK OF POWER/POOR ACCELERATION HIGH IDLE/LOW IDLE ROUGH IDLE/HUNTING IDLING VIBRATION SLOW/NO RETURN TO IDLE OVERHEATS/WATER TEMPERATURE HIGH EXCESSIVE FUEL CONSUMPTION EXCESSIVE OIL CONSUMPTION BATTERY DEAD (UNDER CHARGE) Warranty symptom code A AA AB AC AD AE AF AG AH AJ AK AL AM HA 5 5 5 Air F G — 5 5 5 H — Air duct EM-142 Air cleaner EM-140 Electric throttle control actuator 5 5 5 5 J EM-142 EM-142 Battery PG-122 K 1 1 1 CHG-5 L Starter circuit Signal plate EM-172 PNP switch TM-181 Cylinder head Cylinder head gasket STR-5 5 5 5 M EM-192 N Cylinder block Piston Piston ring Connecting rod I EM-142 Air leakage from intake manifold/ Collector/Gasket Generator circuit Engine E — Air leakage from air duct (Mass air flow sensor — electric throttle control actuator) Cranking D EM-155 Valve deposit Poor fuel (Heavy weight gasoline, Low octane) C Reference page FL-9 Vapor lock ECQ 6 6 6 6 EM-201 O Bearing Crankshaft Valve mechanism P Timing chain EM-183 Camshaft EM-159 Intake valve timing control 5 5 Intake valve EM-183 Exhaust valve Revision: 2007 October ECQ-635 EM-183 T31 ENGINE CONTROL SYSTEM SYMPTOMS [QR TYPE 2] < SYMPTOM DIAGNOSIS > 5 BATTERY DEAD (UNDER CHARGE) EXCESSIVE OIL CONSUMPTION EXCESSIVE FUEL CONSUMPTION AE OVERHEATS/WATER TEMPERATURE HIGH AD SLOW/NO RETURN TO IDLE AC IDLING VIBRATION LACK OF POWER/POOR ACCELERATION AB ROUGH IDLE/HUNTING SPARK KNOCK/DETONATION AA HIGH IDLE/LOW IDLE HESITATION/SURGING/FLAT SPOT Exhaust ENGINE STALL Warranty symptom code HARD/NO START/RESTART (EXCP HA) SYMPTOM AF AG AH AJ AK AL AM HA 5 Exhaust manifold/Tube/Muffler/ Gasket Three way catalyst Reference page EM-145, EX-10 EM-150, LU-22, LU19, LU-20 HC adsorption catalyst Lubrication Oil pan/Oil strainer/Oil pump/Oil filter/Oil gallery/Oil cooler 5 5 5 Oil level (Low)/Filthy oil Cooling LU-16 Radiator/Hose/Radiator filler cap CO-44 Thermostat CO-54 Water pump Water gallery CO-51 5 5 5 Cooling fan CO-29 CO-49 Coolant level (Low)/Contaminated coolant NATS (NISSAN Vehicle Immobilizer System) 1 CO-37 SEC-175 - 6: The numbers refer to the order of inspection Revision: 2007 October ECQ-636 T31 NORMAL OPERATING CONDITION [QR TYPE 2] < SYMPTOM DIAGNOSIS > NORMAL OPERATING CONDITION Description A INFOID:0000000002924951 FUEL CUT CONTROL (AT NO LOAD AND HIGH ENGINE SPEED) ECQ If the engine speed is above 1,800 rpm under no load (for example, the selector lever position is neutral and engine speed is over 1,800 rpm) fuel will be cut off after some time The exact time when the fuel is cut off varies based on engine speed Fuel cut will be operated until the engine speed reaches 1,500 rpm, then fuel cut will be cancelled NOTE: This function is different from deceleration control listed under Multiport Fuel Injection (MFI) System, ECQ379, "System Description" C D E F G H I J K L M N O P Revision: 2007 October ECQ-637 T31 PRECAUTIONS [QR TYPE 2] < PRECAUTION > PRECAUTION PRECAUTIONS Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" INFOID:0000000002924952 The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision Information necessary to service the system safely is included in the “SRS AIRBAG” and “SEAT BELT” of this Service Manual WARNING: • To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer • Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system For removal of Spiral Cable and Air Bag Module, see the “SRS AIRBAG” • Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Manual SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors Precaution Necessary for Steering Wheel Rotation After Battery Disconnect INFOID:0000000002924953 NOTE: • This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYSTEM) • Remove and install all control units after disconnecting both battery cables with the ignition knob in the ″LOCK″ position • Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work If DTC is detected, perform trouble diagnosis according to self-diagnostic results For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mechanism is adopted on the key cylinder For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and steering wheel rotation will become impossible If steering wheel rotation is required when battery power is interrupted, follow the procedure below before starting the repair operation OPERATION PROCEDURE Connect both battery cables NOTE: Supply power using jumper cables if battery is discharged Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC″ position At this time, the steering lock will be released Disconnect both battery cables The steering lock will remain released and the steering wheel can be rotated Perform the necessary repair operation When the repair work is completed, return the ignition switch to the ″LOCK″ position before connecting the battery cables (At this time, the steering lock mechanism will engage.) Perform a self-diagnosis check of all control units using CONSULT-III Revision: 2007 October ECQ-638 T31 PRECAUTIONS [QR TYPE 2] < PRECAUTION > Precaution for Procedure without Cowl Top Cover INFOID:0000000002924954 A When performing the procedure after removing cowl top cover, cover the lower end of windshield with urethane, etc ECQ C D PIIB3706J Precautions For Xenon Headlamp Service INFOID:0000000002924955 WARNING: Comply with the following warnings to prevent any serious accident • Disconnect the battery cable (negative terminal) or the power supply fuse before installing, removing, or touching the xenon headlamp (bulb included) The xenon headlamp contains high-voltage generated parts • Never work with wet hands • Check the xenon headlamp ON-OFF status after assembling it to the vehicle Never turn the xenon headlamp ON in other conditions Connect the power supply to the vehicle-side connector (Turning it ON outside the lamp case may cause fire or visual impairments.) • Never touch the bulb glass immediately after turning it OFF It is extremely hot CAUTION: Comply with the following cautions to prevent any error and malfunction • Install the xenon bulb securely (Insufficient bulb socket installation may melt the bulb, the connector, the housing, etc by high-voltage leakage or corona discharge.) • Never perform HID circuit inspection with a tester • Never touch the xenon bulb glass with hands Never put oil and grease on it • Dispose of the used xenon bulb after packing it in thick vinyl without breaking it • Never wipe out dirt and contamination with organic solvent (thinner, gasoline, etc.) On Board Diagnostic (OBD) System of Engine and CVT INFOID:0000000002924956 The ECM has an on board diagnostic system It will light up the malfunction indicator lamp (MIL) to warn the driver of a malfunction causing emission deterioration CAUTION: • Be sure to turn the ignition switch OFF and disconnect the negative battery cable before any repair or inspection work The open/short circuit of related switches, sensors, solenoid valves, etc will cause the MIL to light up • Be sure to connect and lock the connectors securely after work A loose (unlocked) connector will cause the MIL to light up due to the open circuit (Be sure the connector is free from water, grease, dirt, bent terminals, etc.) • Certain systems and components, especially those related to OBD, may use a new style slide-locking type harness connector For description and how to disconnect, refer to PG-109, "Description" • Be sure to route and secure the harnesses properly after work The interference of the harness with a bracket, etc may cause the MIL to light up due to the short circuit • Be sure to connect rubber tubes properly after work A misconnected or disconnected rubber tube may cause the MIL to light up due to the malfunction of the EVAP system or fuel injection system, etc • Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM and TCM (Transmission control module) before returning the vehicle to the customer Revision: 2007 October ECQ-639 T31 E F G H I J K L M N O P PRECAUTIONS [QR TYPE 2] < PRECAUTION > General Precautions INFOID:0000000002924957 • Always use a 12 volt battery as power source • Do not attempt to disconnect battery cables while engine is running • Before connecting or disconnecting the ECM harness connector, turn ignition switch OFF and disconnect negative battery cable Failure to so may damage the ECM because battery voltage is applied to ECM even if ignition switch is turned OFF • Before removing parts, turn ignition switch OFF and then disconnect battery ground cable SEF289H • Do not disassemble ECM • If a battery cable is disconnected, the memory will return to the ECM value The ECM will now start to self-control at its initial value Engine operation can vary slightly when the terminal is disconnected However, this is not an indication of a malfunction Do not replace parts because of a slight variation • If the battery is disconnected, the following emission-related diagnostic information will be lost within 24 hours - Diagnostic trouble codes - 1st trip diagnostic trouble codes - Freeze frame data - 1st trip freeze frame data - Test values • When connecting ECM harness connector (A), fasten (B) it securely with a lever as far as it will go as shown in the figure ECM B Loosen C fasten PBIB1164E JMBIA0259ZZ • When connecting or disconnecting pin connectors into or from ECM, take care not to damage pin terminals (bend or break) Make sure that there are not any bends or breaks on ECM pin terminal, when connecting pin connectors • Securely connect ECM harness connectors A poor connection can cause an extremely high (surge) voltage to develop in coil and condenser, thus resulting in damage to ICs • Keep engine control system harness at least 10 cm (4 in) away from adjacent harness, to prevent engine control system malfunctions due to receiving external noise, degraded operation of ICs, etc • Keep engine control system parts and harness dry Revision: 2007 October ECQ-640 PBIB0090E T31 PRECAUTIONS < PRECAUTION > • Before replacing ECM, perform ECM Terminals and Reference Value inspection and make sure ECM functions properly Refer to ECQ-607, "Reference Value" • Handle mass air flow sensor carefully to avoid damage • Do not clean mass air flow sensor with any type of detergent • Do not disassemble electric throttle control actuator • Even a slight leak in the air intake system can cause serious incidents • Do not shock or jar the camshaft position sensor (PHASE), crankshaft position sensor (POS) [QR TYPE 2] A ECQ C MEF040D D • After performing each TROUBLE DIAGNOSIS, perform DTC CONFIRMATION PROCEDURE or Component Function Check The DTC should not be displayed in the DTC Confirmation Procedure if the repair is completed The Component Function Check should be a good result if the repair is completed E F G SAT652J H • When measuring ECM signals with a circuit tester, never allow the two tester probes to contact Accidental contact of probes will cause a short circuit and damage the ECM power transistor • Do not use ECM ground terminals when measuring input/output voltage Doing so may result in damage to the ECM’s transistor Use a ground other than ECM terminals, such as the ground I J K L M N SEF348N O • Do not operate fuel pump when there is no fuel in lines • Tighten fuel hose clamps to the specified torque P Revision: 2007 October ECQ-641 T31 PRECAUTIONS < PRECAUTION > • Do not depress accelerator pedal when starting • Immediately after starting, not rev up engine unnecessarily • Do not rev up engine just prior to shutdown [QR TYPE 2] SEF709Y • When installing C.B ham radio or a mobile phone, be sure to observe the following as it may adversely affect electronic control systems depending on installation location - Keep the antenna as far as possible from the electronic control units - Keep the antenna feeder line more than 20 cm (8 in) away from the harness of electronic controls Do not let them run parallel for a long distance - Adjust the antenna and feeder line so that the standing-wave ratio can be kept smaller - Be sure to ground the radio to vehicle body Revision: 2007 October ECQ-642 SEF708Y T31 PREPARATION [QR TYPE 2] < PREPARATION > PREPARATION A PREPARATION Special Service Tools INFOID:0000000002924958 NOTE: The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here Tool number Tool name ECQ C Description Loosening or tightening heated oxygen sensors with 22 mm (0.87 in) hexagon nut KV10117100 Heated oxygen sensor wrench D E F NT379 Commercial Service Tools INFOID:0000000002924959 G Tool name Description Socket wrench Removing and installing engine coolant temperature sensor H I S-NT705 Oxygen sensor thread cleaner J Reconditioning the exhaust system threads before installing a new oxygen sensor Use with antiseize lubricant shown below a: 18 mm diameter with pitch 1.5 mm for Zirconia Oxygen Sensor b: 12 mm diameter with pitch 1.25 mm for Titania Oxygen Sensor K L AEM488 Anti-seize lubricant Lubricating oxygen sensor thread cleaning tool when reconditioning exhaust system threads i.e.: (PermatexTM 133AR or equivalent meeting MIL specification MIL-A-907) M N S-NT779 O P Revision: 2007 October ECQ-643 T31 FUEL PRESSURE [QR TYPE 2] < ON-VEHICLE REPAIR > ON-VEHICLE REPAIR FUEL PRESSURE Inspection INFOID:0000000002924960 FUEL PRESSURE RELEASE With CONSULT-III Turn ignition switch ON Perform “FUEL PRESSURE RELEASE” in “WORK SUPPORT” mode with CONSULT-III Start engine After engine stalls, crank it two or three times to release all fuel pressure Turn ignition switch OFF With CONSULT-III Remove fuel pump fuse located in IPDM E/R Start engine After engine stalls, crank it two or three times to release all fuel pressure Turn ignition switch OFF Reinstall fuel pump fuse after servicing fuel system FUEL PRESSURE CHECK CAUTION: Before disconnecting fuel line, release fuel pressure from fuel line to eliminate danger NOTE: • Prepare pans or saucers under the disconnected fuel line because the fuel may spill out The fuel pressure cannot be completely released because T31 models not have fuel return system • Use Fuel Pressure Gauge Kit to check fuel pressure Release fuel pressure to zero Connect fuel tube (B) adapter to quick connector A : Fuel pressure gauge C : Fuel feed hose Turn ignition switch ON and check for fuel leakage Start engine and check for fuel leakage Read the indication of fuel pressure gauge At idling : Approximately 350 kPa (3.5bar, 3.57 kg/cm , 51 psi) ALBIA0090ZZ If result is unsatisfactory, check fuel hoses and fuel tubes for clogging If OK, Replace “fuel filter and fuel pump assembly” If NG, Repair or replace Revision: 2007 October ECQ-644 T31 EVAPORATIVE EMISSION SYSTEM [QR TYPE 2] < ON-VEHICLE REPAIR > EVAPORATIVE EMISSION SYSTEM Inspection a b A INFOID:0000000002924961 Visually inspect EVAP vapor lines for improper attachment and for cracks, damage, loose connections, ECQ chafing and deterioration Check EVAP canister as follows: Block port (B) Orally blow air through port (A) C Check that air flows freely through port (C) Block port (A) Orally blow air through port (B) Check that air flows freely through port (C) D E PBIB0663E F a b c Visually inspect the fuel check valve for cracks, damage, loose connections chafing and deterioration Check fuel check valve as follows: Blow air through connector on the fuel tank side A considerable resistance should be felt and a portion of air flow should be directed toward the EVAP canister side Blow air through connector on EVAP canister side Air flow should be smoothly directed toward fuel tank side If fuel check valve is suspected or not properly functioning in step and above, replace it G H I SEF552Y J a Inspect fuel tank filler cap vacuum relief valve for clogging, sticking, etc Wipe clean valve housing K L M SEF989X b Pressure: Vacuum: c N Check valve opening pressure and vacuum 15.3 - 20.0 kPa (0.153 - 0.200 bar, 0.156 - 0.204 kg/ cm2, 2.22 - 2.90 psi) O –6.0 to –3.4 kPa (–0.06 bar to –-0.034bar, –0.061 to – 0.035 kg/cm2, –0.87 to –0.49 psi) P If out of specification, replace fuel filler cap as an assembly SEF943S Revision: 2007 October ECQ-645 T31 SERVICE DATA AND SPECIFICATIONS (SDS) [QR TYPE 2] < SERVICE DATA AND SPECIFICATIONS (SDS) SERVICE DATA AND SPECIFICATIONS (SDS) SERVICE DATA AND SPECIFICATIONS (SDS) Idle Speed INFOID:0000000002924962 Transmission Condition Specification CVT No load* (in P or N position) 650 ± 50 rpm M/T No load* (in Neutral position) 650 ± 50 rpm *: Under the following conditions • A/C switch: OFF • Electric load: OFF (Lights, heater fan & rear window defogger) • Steering wheel: Kept in straight-ahead position Ignition Timing INFOID:0000000002924963 Transmission Condition Specification CVT No load* (in P or N position) 9.75 ± 5° BTDC M/T No load* (in Neutral position) 9.75 ± 5° BTDC *: Under the following conditions • A/C switch: OFF • Electric load: OFF (Lights, heater fan & rear window defogger) • Steering wheel: Kept in straight-ahead position Mass Air Flow Sensor INFOID:0000000002924964 Supply voltage Battery voltage (11 – 14 V) Output voltage at idle 0.8 – 1.2V* 1.0 – 4.0 g·m/sec at idle* 2.0 – 10.0 g·m/sec at 2,500 rpm* Mass air flow (Using CONSULT-III) *: Engine is warmed up to normal operating temperature and running under no load Revision: 2007 October ECQ-646 T31