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ENGINE SECTION EM ENGINE MECHANICAL A EM C D E CONTENTS QR25DE Exploded View 20 Checking Drive Belts .20 Tension Adjustment 20 Removal and Installation 20 Removal and Installation of Drive Belt Auto-tensioner .21 PRECAUTION PRECAUTIONS Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" Precautions Necessary for Steering Wheel Rotation after Battery Disconnect Precaution for Draining Coolant and Engine Oil Precaution for Disconnecting Fuel Piping Precaution for Removal and Disassembly Precaution for Inspection, Repair and Replacement Special Cautions to Ensure the Safe Disposal of Sodium-filled Exhaust Valves Precaution for Assembly and Installation Parts Requiring Angular Tightening Precaution for Liquid Gasket PREPARATION PREPARATION Special Service Tools Commercial Service Tool 10 SYMPTOM DIAGNOSIS 14 NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING 14 NVH Troubleshooting - Engine Noise 14 Use the Chart Below to Help You Find the Cause of the Symptom 15 AIR CLEANER FILTER 23 G H Exploded View 23 Removal and Installation 23 CAMSHAFT VALVE CLEARANCE 24 I Camshaft valve clearance .24 COMPRESSION PRESSURE 27 J Compression pressure 27 REMOVAL AND INSTALLATION 29 K ENGINE ROOM COVER 29 Exploded View 29 Removal and Installation 29 L AIR CLEANER AND AIR DUCT 30 Exploded View 30 Removal and Installation 30 M INTAKE MANIFOLD 31 Exploded View 31 Removal and Installation 31 EXHAUST MANIFOLD AND THREE WAY CATALYST 34 Exploded View 34 Removal and Installation 34 PERIODIC MAINTENANCE 17 OIL PAN AND OIL STRAINER 37 SPARK PLUG 17 Exploded View 37 Removal and Installation 37 Exploded View 17 Removal and Installation 17 IGNITION COIL 41 DRIVE BELTS 20 Exploded View 41 Removal and Installation 41 Revision: July 2014 F EM-1 2015 Model L33 N O P FUEL INJECTOR AND FUEL TUBE 42 Exploded View 42 Removal and Installation 42 ROCKER COVER 46 Exploded View 46 Removal and Installation 46 CAMSHAFT 48 Exploded View 48 Removal and Installation 48 Inspection After Installation 56 VALVE TIMING CONTROL 58 Exploded View 58 Intake Valve Timing Intermediate Lock Control Solenoid Valve, Intake Valve Timing Control Solenoid Valve, and Exhaust Valve Timing Control Solenoid Valve 58 Valve Timing Control Cover 59 TIMING CHAIN 61 Exploded View 61 Removal and Installation 62 OIL SEAL 70 VALVE OIL SEAL 70 VALVE OIL SEAL : Removal and Installation 70 FRONT OIL SEAL 71 FRONT OIL SEAL : Removal and Installation 71 REAR OIL SEAL 72 REAR OIL SEAL : Removal and Installation 72 SERVICE DATA AND SPECIFICATIONS (SDS) 113 SERVICE DATA AND SPECIFICATIONS (SDS) 113 Standard and Limit 113 VQ35DE PRECAUTION 124 PRECAUTIONS 124 Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" 124 Precautions Necessary for Steering Wheel Rotation after Battery Disconnect 124 Precaution for Drain Coolant and Engine Oil 125 Precaution for Disconnecting Fuel Piping 125 Precaution for Removal and Disassembly 125 Precaution for Inspection, Repair and Replacement 125 Precaution for Assembly and Installation 125 Parts Requiring Angular Tightening 125 Precaution for Liquid Gasket 125 PREPARATION 127 PREPARATION 127 Special Service Tool 127 Commercial Service Tool 128 SYSTEM DESCRIPTION 131 CYLINDER HEAD 74 NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING 131 Exploded View 74 Removal and Installation 74 Disassembly and Assembly 76 Inspection After Disassembly 81 PERIODIC MAINTENANCE 133 UNIT REMOVAL AND INSTALLATION 84 SPARK PLUG 133 ENGINE ASSEMBLY 84 Exploded View 133 Removal and Installation 133 Exploded View 84 Removal and Installation 85 UNIT DISASSEMBLY AND ASSEMBLY 90 ENGINE STAND SETTING 90 Setting 90 CYLINDER BLOCK 91 Exploded View 91 Disassembly and Assembly 92 Inspection 99 HOW TO SELECT PISTON AND BEARING 107 How to Select Piston and Bearing 107 NVH Troubleshooting - Engine Noise 131 Use the Chart Below to Help You Find the Cause of the Symptom 132 DRIVE BELTS 135 Exploded View 135 Checking Drive Belt 135 Tension Adjustment 135 Removal and Installation 135 Removal and Installation of Drive Belt Auto-tensioner 137 AIR CLEANER FILTER 138 Exploded View 138 Removal and Installation 138 CAMSHAFT VALVE CLEARANCE 139 Valve Clearance 139 COMPRESSION PRESSURE 143 Revision: July 2014 EM-2 2015 Model L33 On-Vehicle Service 143 REAR TIMING CHAIN CASE 190 REMOVAL AND INSTALLATION 144 Exploded View 190 Removal and Installation 190 ENGINE ROOM COVER 144 CAMSHAFT 195 Exploded View 144 Removal and Installation 144 Exploded View 195 Removal and Installation 195 Inspection after Installation 203 AIR CLEANER AND AIR DUCT 145 Exploded View 145 Removal and Installation 145 OIL SEAL 204 Removal and Installation of Valve Oil Seal 204 Removal and Installation of Front Oil Seal 204 Removal and Installation of Rear Oil Seal 206 INTAKE MANIFOLD COLLECTOR 147 Exploded View 147 Removal and Installation 147 A EM C D CYLINDER HEAD 208 Exploded View 208 Removal and Installation 208 Disassembly and Assembly 211 Inspection After Disassembly 213 INTAKE MANIFOLD 150 Exploded View 150 Removal and Installation 150 E F EXHAUST MANIFOLD AND THREE WAY CATALYST 152 ENGINE MOUNT 218 Exploded View 152 Removal and Installation (bank 2) 153 Removal and Installation (bank 1) 154 ENGINE MOUNT (FRONT) 218 ENGINE MOUNT (FRONT) : Removal and Installation 218 G OIL PAN AND OIL STRAINER 157 UNIT REMOVAL AND INSTALLATION 221 H Exploded View 157 Removal and Installation (Lower Oil Pan) 157 Removal and Installation (Upper Oil Pan) 158 IGNITION COIL 163 Exploded View 163 Removal and Installation (bank 2) 163 Removal and Installation (bank 1) 163 FUEL INJECTOR AND FUEL TUBE 164 Exploded View 164 Removal and Installation 164 ENGINE ASSEMBLY 221 Exploded View 221 Removal and Installation 221 UNIT DISASSEMBLY AND ASSEMBLY 225 I J ENGINE STAND SETTING 225 Setting 225 CYLINDER BLOCK 226 K ROCKER COVER 169 Disassembly and Assembly 226 Inspection 236 Dowel Pin Alignment 246 L Exploded View 169 Removal and Installation (bank 2) 169 Removal and Installation (bank 1) 170 SERVICE DATA AND SPECIFICATIONS (SDS) 248 M INTAKE VALVE TIMING CONTROL 173 Exploded View 173 Intake Valve Timing Control Solenoid Valve (bank 2) 173 Intake Valve Timing Control Solenoid Valve (bank 1) 174 SERVICE DATA AND SPECIFICATIONS (SDS) 248 FRONT TIMING CHAIN CASE 175 Exploded View 175 Removal and Installation 175 TIMING CHAIN 183 Exploded View 183 Removal and Installation 183 Revision: July 2014 EM-3 General Specification 248 Drive Belt 248 Spark Plug 249 Intake Manifold 249 Exhaust Manifold 249 Camshaft 249 Cylinder Head 251 Cylinder Block 254 Main Bearing 257 Connecting Rod Bearing 258 Drive Plate 259 2015 Model L33 N O P PRECAUTIONS [QR25DE] < PRECAUTION > PRECAUTION PRECAUTIONS Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" INFOID:0000000010530809 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 SR and SB section 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 SR section • 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 PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS WARNING: • When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a hammer Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing serious injury • When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the battery and wait at least three minutes before performing any service Precautions Necessary for Steering Wheel Rotation after Battery Disconnect INFOID:0000000010530810 NOTE: • Before removing and installing any control units, first turn the push-button ignition switch to the LOCK position, then disconnect both battery cables • After finishing work, confirm that all control unit connectors are connected properly, then re-connect both battery cables • Always use CONSULT to perform self-diagnosis as a part of each function inspection after finishing work If a DTC is detected, perform trouble diagnosis according to self-diagnosis results This vehicle is equipped with a push-button ignition switch and a steering lock unit If the battery is disconnected or discharged, the steering wheel will lock and cannot be turned If turning the steering wheel is required with the battery disconnected or discharged, 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 Carry the Intelligent Key or insert it to the key slot and turn the push-button ignition switch to ACC position (At this time, the steering lock will be released.) Disconnect both battery cables The steering lock will remain released with both battery cables disconnected and the steering wheel can be turned Perform the necessary repair operation When the repair work is completed, re-connect both battery cables With the brake pedal released, turn the push-button ignition switch from ACC position to ON position, then to LOCK position (The steering wheel will lock when the push-button ignition switch is turned to LOCK position.) Perform self-diagnosis check of all control units using CONSULT Revision: July 2014 EM-4 2015 Model L33 PRECAUTIONS [QR25DE] < PRECAUTION > Precaution for Draining Coolant and Engine Oil INFOID:0000000011300444 A Drain engine coolant and engine oil after the engine has cooled completely Precaution for Disconnecting Fuel Piping INFOID:0000000010530812 • Before starting work, make sure no fire or spark producing items are in the work area • Release fuel pressure before any removal or disassembly • After disconnecting pipes, plug openings to stop fuel leakage Precaution for Removal and Disassembly C INFOID:0000000010530813 • When instructed to use special service tools, use the specified tools Always be careful to work safely, avoid forceful operations • Use maximum care to avoid damage to mating or sliding surfaces • Cover openings of engine system with tape or equivalent, if necessary, to seal out foreign materials • Mark and arrange disassembly parts in an organized way for easy troubleshooting and 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, follow the specifications Precaution for Inspection, Repair and Replacement EM D E F INFOID:0000000010530814 • Before repairing or replacing, thoroughly inspect parts Inspect new replacement parts in the same way, and replace if necessary G Special Cautions to Ensure the Safe Disposal of Sodium-filled Exhaust Valves INFOID:0000000010530815 Handling and disposal of sodium-filled exhaust valves requires special care and consideration Under conditions such as breakage with subsequent contact with water, metal sodium which lines the inner portion of exhaust valve will react violently, forming sodium hydroxide and hydrogen which may result in an explosion Sodium-filled exhaust valve is identified on the top of its stem as shown in illustration (A) H I J : Identification mark of sodium-filled exhaust valve K AWBIA1366ZZ DEALER DISPOSAL INSTRUCTIONS CAUTION: • Use approved shatter-resistant eye protection when performing this procedure • Perform this and all subsequent disposal work procedures in an open room, away from flammable liquids Keep a fire extinguisher, rated at least 10 ABC, in close proximity to the work area • Be sure to wear rubber gloves when performing the following operations • Make sure the resultant (high alkalinity) waste water does not contact your skin If the waste water does contact you, wash the contacted area immediately with large quantities of water • Dealers should check their respective state and local regulations concerning any chemical treatment or waste water discharge permits which may be required to dispose of the resultant (high alkalinity) waste water Clamp valve stem in a vice The valve has a specially-hardened surface To cut through it, first remove a half-round section, approximately 30 mm (1.18 in) long using air-powered grinder until black color is removed and silver color appears (A) : Black color (B) : Silver color (c) : 47 mm (1.85 in) (d) : 17 mm (0.67 in) JPBIA4964ZZ Revision: July 2014 EM-5 2015 Model L33 L M N O P PRECAUTIONS [QR25DE] < PRECAUTION > Use hacksaw to cut through approximately half the diameter of valve stem Make the serration at a point 40 mm (1.57 in) from the end of valve stem (a) : 40 mm (1.57 in) JPBIA4965ZZ Cover the serrated end of the valve with a large shop towel (A) Strike the valve face end with a hammer, separating it into two pieces Fill a bucket, such as a 20 (5-1/4 US gal, 4-3/8 Imp gal) oil can, with at least 10 (2-5/8 US gal, 2-1/4 lmp gal) of water Carefully place the already cut (serrated) valves into the water one-at-a-time using a set of large tweezers and quickly move away at least 2.7 m (9 ft) JPBIA4966ZZ The valves should be placed in a standing position as shown in the illustration to allow complete reaction After the bubbling action has subsided, additional valves can be placed into the bucket allowing each subsequent chemical reaction to subside However, no more than valves should be placed in the same 10 (2-5/8 US gal, 2-1/4 lmp gal) amount of water The complete chemical reaction may take as long as to hours Remove the valves using a set of large tweezers after the chemical reaction has stopped Afterwards, valves can be disposed as ordinary scrap JPBIA4967ZZ (A) : Bucket [Such as 20 (5-1/4 US gal, 4-3/8 Imp gal) oil can] Precaution for Assembly and Installation INFOID:0000000010530816 • Use torque wrench to tighten bolts or nuts • 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, follow the specifications • Always replace the old with a new gasket, packing, oil seal or O-ring • Thoroughly wash, clean, and air-blow each part Carefully check oil or 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 • Bleed the air trapped within the system after draining the coolant • Before starting engine, apply fuel pressure to fuel lines with turning ignition switch ON (with engine stopped) Then make sure that there are no leaks at fuel line connections • After repairing, start engine and increase engine speed to check coolant, fuel, oil, and exhaust systems for leakage or rattles Parts Requiring Angular Tightening • - INFOID:0000000010530817 Use an angle wrench for the final tightening of the following engine parts Cylinder head bolts Lower cylinder block bolts Connecting rod cap bolts Revision: July 2014 EM-6 2015 Model L33 PRECAUTIONS [QR25DE] < PRECAUTION > - Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angular 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 Precaution for Liquid Gasket A EM INFOID:0000000011300445 REMOVAL OF LIQUID GASKET SEALING C • After removing the bolts and nuts, separate the mating surface and remove the liquid gasket using Tool (A) Tool Number D : KV10111100 (J-37228) CAUTION: Be careful not to damage the mating surfaces • In areas where the cutter is difficult to use, use a plastic hammer to lightly tap (1) the cutter where the liquid gasket is applied Use a plastic hammer to slide (2) the cutter by tapping on the side CAUTION: Do not damage the mating surfaces E F AWBIA1249GB LIQUID GASKET APPLICATION PROCEDURE G Using suitable tool (A), 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 Thoroughly clean the mating surfaces and remove adhering moisture, grease and foreign materials H I J JPBIA0053ZZ Attach liquid gasket tube to the suitable tool Use Genuine Silicone RTV Sealant, or equivalent Refer to GI-21, "Recommended Chemical Products and Sealants" Apply liquid gasket without gaps to the specified location according to the specified dimensions • If there is a groove for liquid gasket application, apply liquid gasket to the groove K L M EMA0622D • As for bolt holes (B), normally apply liquid gasket inside the holes Occasionally, it should be applied outside the holes Check to read the text of this manual (A) N O : Groove P : Inside • 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 JPBIA0010ZZ Revision: July 2014 EM-7 2015 Model L33 PRECAUTIONS [QR25DE] < PRECAUTION > • After 30 minutes or more have passed from the installation, fill engine oil and engine coolant Refer to LU-10, "Changing Engine Oil" and CO-10, "Changing Engine Coolant" CAUTION: If there are more specific instructions in the procedures contained in this manual concerning liquid gasket application, observe them Revision: July 2014 EM-8 2015 Model L33 PREPARATION [QR25DE] < PREPARATION > PREPARATION A PREPARATION Special Service Tools INFOID:0000000011300446 The actual shape of the tools may differ from those illustrated here EM C Tool number (TechMate No.) Tool name Description 16441 6N210 (J-45488) Quick connector release Removing fuel tube quick connectors in engine room (Available in SEC 164 of PARTS CATALOG: Part No 16441 6N210) E F PBIC0198E (J-43897-18) Oxygen sensor thread cleaner D Reconditioning the exhaust system threads before installing a new oxygen sensor (Use with anti-seize lubricant shown below.) J-43897-18 (18 mm dia.) for zirconia oxygen sensor G H AWBIA2076ZZ Removing and installing spark plug — (J-48891) Spark plug socket I J AWBIA1785ZZ KV10111100 (J-37228) Seal cutter Removing oil pan and timing chain case K L M S-NT046 KV991J0050 (J-44626) Air fuel sensor Socket Loosening or tightening air fuel ratio A/F sensor a: 22 mm (0.87 in) N O LBIA0444E KV10114400 (J-38365) Heated oxygen sensor wrench Loosening or tightening air fuel ratio A/F sensor a: 22 mm (0.87 in) NT636 Revision: July 2014 EM-9 2015 Model L33 P PREPARATION [QR25DE] < PREPARATION > Tool number (TechMate No.) Tool name Description — (J-37067) Seal installer Installing rear main seal AWBIA2081ZZ KV10112100 (BT-8653-A) Torque angle meter Tightening bolts for bearing cap, cylinder head, etc S-NT014 Commercial Service Tool INFOID:0000000011300447 Tool name Description KV10117100 (J-36471-A) Heated oxygen sensor wrench Loosening or tightening heated oxygen sensor For 22 mm (0.87 in) hexagon nut NT379 KV10116200 (J-26336-A) Valve spring compressor KV10115900 (J-26336-20) Attachment KV10109220 ( — ) Adapter Disassembling valve mechanism Part (1) is a component of KV10116200 (J26336-A), but part (2) is not PBIC1650E Manual lift table caddy Removing and installing engine ZZA1210D ST16610001 (J-23907) Pilot converter puller Removing crankshaft pilot converter S-NT045 Revision: July 2014 EM-10 2015 Model L33 VARIABLE INDUCTION AIR SYSTEM [VQ35DE (TYPE 2)] < DTC/CIRCUIT DIAGNOSIS > A EC C JMBIA1129ZZ Power valve actuator Power valve actuator rod D Power valve actuator Power valve actuator rod : Vehicle front E Without CONSULT When revving engine up to 5,000 rpm quickly Rev engine quickly up to approximately 5,000 rpm Check that power valve actuator rod moves F G H I JMBIA1386ZZ Power valve actuator Power valve actuator rod Power valve actuator rod J Power valve actuator : Vehicle front K Is the inspection result normal? YES >> INSPECTION END NO >> EC-1655, "Diagnosis Procedure" L Diagnosis Procedure INFOID:0000000010532494 M 1.INSPECTION START Confirm the malfunctioning system (power valve or power valve 2) Refer to EC-1654, "Component Function Check" Which system is related to the incident? Power valve 1>>GO TO Power valve 2>>GO TO 2.CHECK VACUUM EXISTENCE-I With CONSULT Stop engine and disconnect vacuum hose connected to power valve actuator Start engine and let it idle Perform “VIAS S/V-1” in “ACTIVE TEST” mode with CONSULT Turn VIAS control solenoid valve ON and OFF, and check vacuum existence under the following conditions Revision: July 2014 EC-1655 2015 Model L33 N O P VARIABLE INDUCTION AIR SYSTEM [VQ35DE (TYPE 2)] < DTC/CIRCUIT DIAGNOSIS > VIAS S/V-1 Vacuum ON Existed OFF Not existed Without CONSULT Stop engine and disconnect vacuum hose connected to power valve actuator Disconnect VIAS control solenoid valve harness connector Start engine Rev engine quickly up to approximately 5,000 rpm Check vacuum existence under the following conditions Condition Vacuum Idle Existed Rev engine quickly up to approximately 5,000 rpm Not existed Is the inspection result normal? YES >> Repair or replace power valve actuator Refer to EC-1348, "ENGINE CONTROL SYSTEM : Component Parts Location" NO >> GO TO 3.CHECK VACUUM TANK Stop engine and disconnect vacuum hose connected to intake manifold collector Start engine and let it idle Check vacuum existence from intake manifold collector Does vacuum existence from the intake manifold collector? YES >> GO TO NO >> Replace intake manifold collector Refer to EM-147, "Removal and Installation" 4.CHECK VACUUM HOSE Stop engine Check vacuum hose for crack, clogging, improper connection or disconnection Refer to EC-1385, "VARIABLE INDUCTION AIR SYSTEM : System Description" Is the inspection result normal? YES >> GO TO NO >> Repair hoses or tubes 5.CHECK VIAS CONTROL SOLENOID VALVE SEF109L Check VIAS control solenoid valve Refer to EC-1589, "Component Inspection" Is the inspection result normal? YES >> GO TO NO >> Replace VIAS control solenoid valve Refer to EC-1348, "ENGINE CONTROL SYSTEM : Component Parts Location" 6.CHECK VACUUM EXISTENCE-II With CONSULT Stop engine and disconnect vacuum hose connected to power valve actuator Start engine and let it idle Perform “VIAS S/V-2” in “ACTIVE TEST” mode with CONSULT Turn VIAS control solenoid valve ON and OFF, and check vacuum existence under the following conditions Revision: July 2014 EC-1656 2015 Model L33 VARIABLE INDUCTION AIR SYSTEM [VQ35DE (TYPE 2)] < DTC/CIRCUIT DIAGNOSIS > VIAS S/V Vacuum ON Existed OFF Not existed A EC Without CONSULT Stop engine and disconnect vacuum hose connected to power valve actuator Disconnect VIAS control solenoid valve harness connector Start engine Rev engine quickly up to approximately 5,000 rpm Check vacuum existence under the following conditions Condition Operation Idle Existed Rev engine quickly up to approximately 5,000 rpm Not existed C D E Is the inspection result normal? YES >> Repair or replace power valve actuator Refer to EC-1348, "ENGINE CONTROL SYSTEM : Component Parts Location" NO >> GO TO 7.CHECK VACUUM HOSE F G Stop engine Check vacuum hose for crack, clogging, improper connection or disconnection Refer to EC-1385, "VARIABLE INDUCTION AIR SYSTEM : System Description" Is the inspection result normal? YES >> GO TO NO >> Repair hoses or tubes H I J 8.CHECK VIAS CONTROL SOLENOID VALVE SEF109L Check VIAS control solenoid valve Refer to EC-1591, "Component Inspection" Is the inspection result normal? YES >> Check intermittent incident Refer to GI-47, "Intermittent Incident" NO >> Replace VIAS control solenoid valve Refer to EC-1348, "ENGINE CONTROL SYSTEM : Component Parts Location" K L M N O P Revision: July 2014 EC-1657 2015 Model L33 ENGINE CONTROL SYSTEM SYMPTOMS [VQ35DE (TYPE 2)] < SYMPTOM DIAGNOSIS > SYMPTOM DIAGNOSIS ENGINE CONTROL SYSTEM SYMPTOMS Symptom Table INFOID:0000000010532495 SYSTEM — BASIC ENGINE CONTROL SYSTEM 1 Fuel pressure regulator system 3 4 Air BATTERY DEAD (UNDER CHARGE) Fuel pump circuit EXCESSIVE OIL CONSUMPTION Fuel EXCESSIVE FUEL CONSUMPTION AE OVERHEATS/WATER TEMPERATURE HIGH LACK OF POWER/POOR ACCELERATION AD SLOW/NO RETURN TO IDLE SPARK KNOCK/DETONATION AC IDLING VIBRATION HESITATION/SURGING/FLAT SPOT AB ROUGH IDLE/HUNTING ENGINE STALL AA Warranty symptom code HIGH IDLE/LOW IDLE HARD/NO START/RESTART (EXCP HA) SYMPTOM AF AG AH AJ AK AL AM HA 2 4 Reference page EC-1634 4 EC-1474 Fuel injector circuit 1 2 2 EC-1631 Evaporative emission system 3 4 4 4 4 EC-1380 Positive crankcase ventilation system 3 4 4 4 4 1 1 2 2 Incorrect idle speed adjustment EC-1363 EC-1462 1 3 Incorrect ignition timing adjustment 3 1 1 1 EC-1462 Ignition circuit 1 2 2 2 EC-1638 Power supply and ground circuit 2 3 3 3 EC-1484 Ignition Mass air flow sensor circuit Engine coolant temperature sensor circuit 2 EC-1495 3 EC-1499 Air fuel ratio (A/F) sensor circuit 2 2 2 Knock sensor circuit Engine oil temperature sensor Crankshaft position sensor (POS) circuit Revision: July 2014 2 EC-1550, EC-1604, EC-1606, EC-1611 2 EC-1503, EC-1506, EC-1509 EC-1501, EC-1518, EC-1559, EC-1560, EC-1609 Throttle position sensor circuit Accelerator pedal position sensor circuit EC-1597, EC-1602 Electric throttle control actuator EC-1520 EC-1516 EC-1522 EC-1658 2015 Model L33 ENGINE CONTROL SYSTEM SYMPTOMS [VQ35DE (TYPE 2)] < SYMPTOM DIAGNOSIS > SYMPTOM 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) Camshaft position sensor (PHASE) circuit HARD/NO START/RESTART (EXCP HA) Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA Vehicle speed signal circuit ECM A Intake valve timing control solenoid valve circuit Reference page 3 3 3 3 3 2 3 3 3 E EC-1538 EC-1546, EC-1548 EC-1493 EC-1552 VIAS control solenoid valve circuit EC-1588 VIAS control solenoid valve circuit EC-1590 Refrigerant pressure sensor circuit Electrical load signal circuit Air conditioner circuit ABS actuator and electric unit (control unit) 3 3 3 EC-1623 F G H I EC-1650 C D EC-1525 PNP signal circuit EC HA-16 J BRC-55 - 6: The numbers refer to the order of inspection K (continued on next page) SYSTEM — ENGINE MECHANICAL & OTHER L M N O P Revision: July 2014 EC-1659 2015 Model L33 ENGINE CONTROL SYSTEM SYMPTOMS [VQ35DE (TYPE 2)] < SYMPTOM DIAGNOSIS > Fuel Fuel tank Fuel piping 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 HARD/NO START/RESTART (EXCP HA) SYMPTOM AA AB AC AD AE AF AG AH AJ AK AL AM HA Vapor lock 5 5 FL-15 — Valve deposit Poor fuel (Heavy weight gasoline, Low octane) Air — 5 5 5 — Air duct EM-145 Air cleaner EM-138 Air leakage from air duct (Mass air flow sensor — electric throttle control actuator) Electric throttle control actuator 5 5 5 5 EM-145 5 EM-147 Air leakage from intake manifold/ Collector/Gasket Cranking EM-147, EM-150 Battery Generator circuit Engine Reference page PG-73 1 1 1 CHG-18, CHG-21 STR-13, STR-16 Starter circuit Signal plate EM-226 PNP signal TM-310 Cylinder head Cylinder head gasket 5 5 5 5 EM-213 Cylinder block Piston Piston ring Connecting rod 6 6 6 6 EM-226 Bearing Crankshaft Revision: July 2014 EC-1660 2015 Model L33 ENGINE CONTROL SYSTEM SYMPTOMS [VQ35DE (TYPE 2)] < SYMPTOM DIAGNOSIS > SYMPTOM Valve mechanism 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 EM-203 5 5 5 Exhaust manifold/Tube/Muffler/ Gasket 5 5 5 5 Three way catalyst Oil pan/Oil strainer/Oil pump/Oil filter/Oil gallery/Oil cooler EM-173, EM-174 Exhaust valve Cooling E Camshaft 5 5 5 5 EM-208 J CO-39, CO-50 Water gallery 5 5 5 5 CO-50 CO-30 L CO-41 Coolant level (Low)/Contaminated coolant NVIS (NISSAN Vehicle Immobilizer System — NATS) K CO-48 Cooling fan H EM-157, LU-28, LU30, LU-33 Radiator/Hose/Radiator filler cap Water pump G I LU-26 F EM-152, EM-153, EM-154 Oil level (Low)/Filthy oil Thermostat C D EM-183 Intake valve Lubrication Reference page Timing chain Intake valve timing control Exhaust EC 1 LU-26 M SEC-13 N - 6: The numbers refer to the order of inspection O P Revision: July 2014 EC-1661 2015 Model L33 NORMAL OPERATING CONDITION [VQ35DE (TYPE 2)] < SYMPTOM DIAGNOSIS > NORMAL OPERATING CONDITION Description INFOID:0000000010532496 FUEL CUT CONTROL (AT NO LOAD AND HIGH ENGINE SPEED) If the engine speed is above 2,000 rpm under no load (for example, the selector lever position is P or N and engine speed is over 2,000 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 1,100 rpm, then fuel cut will be cancelled NOTE: This function is different from deceleration control listed under Multiport Fuel Injection (MFI) System, EC-1368, "MULTIPORT FUEL INJECTION SYSTEM : System Description" Revision: July 2014 EC-1662 2015 Model L33 IDLE SPEED [VQ35DE (TYPE 2)] < PERIODIC MAINTENANCE > PERIODIC MAINTENANCE A IDLE SPEED Work Procedure INFOID:0000000010532497 EC 1.CHECK IDLE SPEED C With CONSULT Check idle speed in “DATA MONITOR” mode with CONSULT D >> INSPECTION END E F G H I J K L M N O P Revision: July 2014 EC-1663 2015 Model L33 IGNITION TIMING [VQ35DE (TYPE 2)] < PERIODIC MAINTENANCE > IGNITION TIMING Work Procedure INFOID:0000000010532498 1.CHECK IGNITION TIMING Attach timing light (A) to loop wires as shown : Vehicle front ALBIA0809ZZ Check ignition timing >> INSPECTION END JMBIA1135GB Revision: July 2014 EC-1664 2015 Model L33 EVAPORATIVE EMISSION SYSTEM [VQ35DE (TYPE 2)] < PERIODIC MAINTENANCE > EVAPORATIVE EMISSION SYSTEM Inspection A INFOID:0000000010532499 EVAP VAPOR LINES EC Visually inspect EVAP vapor lines for improper attachment and for cracks, damage, loose connections, chafing and deterioration EVAP CANISTER C D 1.CHECK EVAP CANISTER Block port (B) Blow air into port (A) and check that air flows freely out of port (C) Release blocked port (B) Block port (A) Blow air into port (B) and check that air flows freely out of port (C) E F >> INSPECTION END PBIB1212E G FUEL CHECK VALVE 1.CHECK FUEL CHECK VALVE H Visually inspect the fuel check valve for cracks, damage, loose connections chafing and deterioration 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 I J K >> INSPECTION END SEF552Y FUEL TANK FILLER CAP L M 1.CHECK FUEL TANK FILLER CAP Check fuel tank filler cap vacuum relief valve for clogging, sticking, etc Wipe clean valve housing N O SEF989X Revision: July 2014 EC-1665 2015 Model L33 P EVAPORATIVE EMISSION SYSTEM [VQ35DE (TYPE 2)] < PERIODIC MAINTENANCE > Check valve opening pressure and vacuum Pressure: Vacuum: 15.3 - 20.0 kPa (0.153 - 0.200 bar, 0.156 - 0.204 kg/ cm2, 2.22 - 2.90 psi) –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) If out of specification, replace fuel filler cap as an assembly >> INSPECTION END SEF943S Revision: July 2014 EC-1666 2015 Model L33 POSITIVE CRANKCASE VENTILATION [VQ35DE (TYPE 2)] < PERIODIC MAINTENANCE > POSITIVE CRANKCASE VENTILATION Work Procedure A INFOID:0000000010532500 1.CHECK PCV VALVE EC With engine running at idle, remove PCV valve from rocker cover A properly working valve makes a hissing noise as air passes through it A strong vacuum should be felt immediately when a finger is placed over valve inlet Is the inspection result normal? YES >> INSPECTION END NO >> Replace PCV valve C D E PBIB1589E F G H I J K L M N O P Revision: July 2014 EC-1667 2015 Model L33 ECM [VQ35DE (TYPE 2)] < REMOVAL AND INSTALLATION > REMOVAL AND INSTALLATION ECM Removal and Installation INFOID:0000000010532501 CAUTION: Perform ADDITIONAL SERVICE WHEN REPLACING ECM Refer to EC-1466, "Work Procedure" REMOVAL Remove battery Refer to PG-82, "Exploded View" Disconnect ECM harness connectors Refer to PG-10, "Harness Connector" Remove ECM mounting nuts (A), and then remove ECM (1) JSBIA1367GB INSTALLATION Install in the reverse order of removal Revision: July 2014 EC-1668 2015 Model L33 SERVICE DATA AND SPECIFICATIONS (SDS) [VQ35DE (TYPE 2)] < SERVICE DATA AND SPECIFICATIONS (SDS) SERVICE DATA AND SPECIFICATIONS (SDS) A SERVICE DATA AND SPECIFICATIONS (SDS) Idle Speed INFOID:0000000010532502 Condition Specification C 650 ± 50 rpm No load* (in P or N position) EC *: Under the following conditions • A/C switch: OFF D • Electric load: OFF (Lights, heater fan & rear window defogger) • Steering wheel: Kept in straight-ahead position Ignition Timing INFOID:0000000010532503 Condition Specification E F 12 ± 2° BTDC No load* (in P or N position) *: Under the following conditions G • A/C switch: OFF • Electric load: OFF (Lights, heater fan & rear window defogger) • Steering wheel: Kept in straight-ahead position H Calculated Load Value INFOID:0000000010532504 Condition I Specification (Using CONSULT) At idle 10 – 35 % At 2,500 rpm 10 – 35 % J Mass Air Flow Sensor INFOID:0000000010532505 K Supply voltage Battery voltage (11 – 14 V) Output voltage at idle (in N position) 0.9 – 1.2 V* 2.0 – 6.0 g/s at idle* 7.0 – 20.0 g/s at 2,500 rpm* Mass air flow (Using CONSULT) *: Engine is warmed up to normal operating temperature and running under no load L M N O P Revision: July 2014 EC-1669 2015 Model L33