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Tài liệu hướng dẫn sửa chữa Hệ thống kiểm soát khí thải trên xe Toyota rush daihatsu terios 2006 2012 emission control system he thong kiem soat khi thai. Cung cấp các thông tin cần thiết cho Kỹ thuật viên tiến hành chẩn đoán, sửa chữa nhanh chóng, hiệu quả
TO INDEX EC EMISSION CONTROL SYSTEM OUTLINE OF EMISSION CONTROL SYSTEM EC–-12 1-1 PURPOSE OF SYSTEM EC–-12 SCHEMATIC DIAGRAM EC–-13 2-1 FOR EU SPECIFICATIONS OF M101, M201 AND J102 EC–-13 2-2 FOR AUS GENERAL SPECIFICATIONS OF M101, M201 AND J102 EC–-14 2-3 FOR LEADED SPECIFICATIONS OF J102 EC–-15 2-4 FOR EU SPECIFICATIONS OF S221 EC–5-1 2-5 FOR AUS AND GENERAL SPECIFICATIONS OF S221 EC–5-2 2-6 FOR LEADED SPECIFICATIONS OF S221 EC–5-3 INSPECTION OF POSITIVE CRANKCASE VENTILATION SYSTEM EC–-16 INSPECTION OF FUEL EVAPORATIVE EMISSION CONTROL SYSTEM EC–-17 4-1 COMPONENT LAYOUT EC–-17 4-2 INSPECTION OF FUEL VAPOR LINES, FUEL TANK & FILLER CAP EC–-17 4-3 INSPECTION OF VSV FOR EVAP EC–-18 JEC00001-00000 EC–2 Revision 1 OUTLINE OF EMISSION CONTROL SYSTEM 1-1 PURPOSE OF SYSTEM Pollutants to be controlled HC Blow-by gas recirculation ! CO ! NOx Purpose and function For system check procedure, refer to — A system whereby the blow-by gas generated inside the engine is introduced to the intake manifold, instead of releasing it to the atmosphere, in order that it may be burnt again in the combustion chamber EM section EC–6 Three-way catalyst ! ! ! A device whereby HC and CO contained in the exhaust gas are oxidized and NOx is deoxidized by the monolithic type catalytic converter, thereby reducing those emissions of HC, CO and NOx to be released to the atmosphere Feedback control (EFI) ! ! ! The feedback control system ensures a proper air-to-fuel ratio required by the engine Also it ensures an optimum amount of oxygen to be contained in the exhaust gas so as to obtain high purification rate of the three-way catalyst EF section EF section Electronic ignition timing control (ESA) — — ! In this electronic ignition timing control, based on signals sent from various sensors, the emission control computer always keeps the ignition timing at an optimum timing according to the engine conditions Deceleration fuel cut ! ! — A device which prevents the fuel supply during deceleration period in order to reduce HC and CO emissions EF section Dynamic variable valve timing control (DVVT) ! — ! This controller reduces NOx and HC emission by controlling the opening/closing of the intake valves to a timing best suited to running conditions EF section Fuel evaporative emission control ! — — A system whereby HC emitted from the fuel tank is absorbed to a charcoal canister, thereby preventing HC from being released to the atmosphere EC–7 sEC00002-00000 EC–3 Revision 2 SCHEMATIC DIAGRAM 2-1 FOR EU SPECIFICATIONS OF M101, M201 AND J102 Air cleaner Intake air temp sensor Linear throttle sensor Throttle body Valve for ISC Manifold absolute pressure sensor Ignition coil VSV for purge Ignitor unit (With ion current detection) Surge tank IMB ECU Data link connector Vehicle speed sensor EFI ECU (Atmospheric pressure sensor built-in) PCV valve Charcoal canister A/T ECU Oil control valve Cam angle sensor +B Injector Malfunction indicator lamp Neutral start switch (Only for A/T) Front O2 sensor heater Front O2 sensor (Bank sensor 1) Rear O2 sensor heater Rear O2 sensor (Bank sensor 2) DVVT controller (Dynamic variable valve timing controller) Engine coolant temperature sensor Crank angle sensor Three-way catalyst YEC00003-00001 EC–4 Revision 2-2 FOR AUS AND GENERAL SPECIFICATIONS OF M101, M201 AND J102 Air cleaner Intake air temp sensor Linear throttle sensor Throttle body Valve for ISC Manifold absolute pressure sensor Ignition coil VSV for purge (In case of M101 & M201) Surge tank PCV valve (In case of J102) Charcoal canister A/T ECU EFI ECU IMB ECU Data link connector Vehicle speed sensor Oil control valve Cam angle sensor +B Malfunction indicator lamp Injector Knock sensor Neutral start switch (Only for A/T) DVVT controller (Dynamic variable valve timing controller) Engine coolant temperature sensor O2 sensor Crank angle sensor Three-way catalyst YEC00004-00002 EC–5 Revision 2-3 FOR LEADED SPECIFICATIONS OF J102 Air cleaner Intake air temp sensor Linear throttle sensor Throttle body Valve for ISC Manifold absolute pressure sensor Ignition coil VSV for purge Surge tank PCV valve Charcoal canister A/T ECU EFI ECU IMB ECU Data link connector Vehicle speed sensor Oil control valve Cam angle sensor +B Malfunction indicator lamp Injector A/F adjuster Knock sensor Neutral start switch (Only for A/T) DVVT controller (Dynamic variable valve timing controller) Engine coolant temperature sensor Crank angle sensor sEC00005-00003 IMB ECU Data link connector Vehicle speed sensor Neutral start switch (Only for A/T) EFI ECU Valve for ISC Charcoal canister Knock sensor Crank angle sensor DVVT controller (Dynamic variable valve timing controller) Surge tank Oil control Injector valve Engine coolant temperature sensor Manifold absolute pressure sensor Throttle body VSV for purge Air cleaner Intake air temp sensor Linear throttle sensor +B Malfunction indicator lamp A/T ECU Ignition coil O2 sensor Three-way catalyst PCV valve Cam angle sensor EC–5-1 Revision 2-4 FOR EU SPECIFICATIONS OF S221 sEC00006-00004 IMB ECU Data link connector Vehicle speed sensor Ignitor unit (With ion current detection) EFI ECU (Atmospheric pressure sensor built-in) Neutral start switch (Only for A/T) +B Malfunction indicator lamp A/T ECU Ignition coil Valve for ISC Charcoal canister Crank angle sensor Front O2 sensor heater Front O2 sensor (Bank sensor 1) DVVT controller (Dynamic variable valve timing controller) Surge tank Three-way catalyst PCV valve Cam angle sensor Rear O2 sensor heater Rear O2 sensor (Bank sensor 2) Oil control Injector valve Engine coolant temperature sensor Manifold absolute pressure sensor Throttle body VSV for purge Air cleaner Intake air temp sensor Linear throttle sensor Revision EC–5-2 2-5 FOR AUS AND GENERAL SPECIFICATIONS OF S221 sEC00007-00005 IMB ECU Data link connector Vehicle speed sensor Valve for ISC Charcoal canister Knock sensor Crank angle sensor DVVT controller (Dynamic variable valve timing controller) Surge tank Oil control Injector valve Engine coolant temperature sensor Manifold absolute pressure sensor Throttle body VSV for purge Air cleaner Intake air temp sensor Linear throttle sensor +B Malfunction indicator lamp Neutral start switch (Only for A/T) EFI ECU A/T ECU A/F adjuster Ignition coil PCV valve Cam angle sensor EC–5-3 Revision 2-6 FOR LEADED SPECIFICATIONS OF S221 sEC00008-00006 EC–6 Revision INSPECTION OF POSITIVE CRANKCASE VENTILATION SYSTEM [M101, M201 & J102] Visual inspection of hoses and connections Check the hoses and connections for cracks, leakage or damage If any parts exhibit fault, replace or repair them, as required YEC00009-00007 [S221] YEC00000-00008 Inspection of PCV Valve Disconnect the PCV hose from the PCV valve Remove the PCV valve PCV valve [S221] [M101, M201 [M101&&J102] J102] YEC00010-00009 Install clean hose to PCV valve Inspect PCV value operation (1) Blow air into the cylinder head side, and check that air passes through easily CAUTION: • Do not suck air through the value Petroleum substances inside the value are harmful Cylinder Head Side Clean hose Spring YEC00011-00010 (2) Blow air into the intake manifold side, and check that air passes through with difficulty NOTE: • If operation is not as specified, replace the PCV valve Intake Manifold Side Spring YEC00012-00011 EC–7 Revision INSPECTION OF FUEL EVAPORATIVE EMISSION CONTROL SYSTEM 4-1 COMPONENT LAYOUT EFI ECU VSV for EVAP Purge port Combustion chamber Purging line Throttle body Fuel tank vapor line Check valve Safety valve Check valve Check valve Fuel tank YEC00013-00012 4-2 INSPECTION OF FUEL VAPOR LINES, FUEL TANK & FILLER CAP Visual inspection of fuel vapor lines and connections for loose connections, kinks or damage If any damage is present, repair or replace the parts, as required Visual inspection of fuel tank Check the fuel tank for deformation, cracks or fuel leakage If any damage is present, repair or replace the part, as required Inspection of the fuel filler cap Check the fuel filler cap and gasket for damage or deformation Also check that air continuity with some resistance exists on the fuel filler cap [M101, M201 & J102] Throttle body VSV for EVAP Charcoal canister Cut off valve Fuel pump Fuel filler cap YEC00014-00013 [S221] Surge tank Fuel filler cap Fuel tank Replace the cap, if necessary NOTE: • If the fuel tank is deformed by negative and positive pressure, be sure to replace the fuel filler cap with a new one after replacing the fuel tank VSV for EVAP Charcoal canister YEC00015-00014 Inspection of charcoal canister (1) Detach the hose band from the charcoal canister (2) Disconnect the rubber hoses from the charcoal canister NOTE: • Prior to the disconnection of the rubber hose, put a tag on each of the rubber hoses so that they may be reconnected correctly to the original position (3) Remove the charcoal canister from the vehicle by pulling up the charcoal canister case YEC00016-00015 EC–8 Revision (4) Visually inspect the charcoal canister case for cracks or damage If any damage is found, replace the charcoal canister with a new one (5) Check of charcoal canister for air leakage Ensure that no air leakage is present when ensure that no air leakage is present when compressed air of 29.4 kPa is applied to the atmosphere side pipe C with the throttle body side A and fuel tank side B pipes plugged If air leakage is present, replace the charcoal canister with a new one (6) Ensure that no air continuity exists when blowing your breath into the purge side A pipe of the charcoal canister If air continuity exists, replace the charcoal canister with a new one Sirion, EXTOL & YRV All specifications Tank side B Terios EU specifications Purge side A Atmosphere port C YEC00017-00016 (7) Check of charcoal canister for restriction q Ensure that air continuity exists on the atmosphere side C pipe, when blowing your breath into the fuel tank side pipe B while the purge side A pipe is plugged If no air continuity exists, replace the charcoal canister with a new one w Ensure that air continuity exists when a negative pressure to is applied the purge side pipe A using a MityVac If no air continuity exists, replace the charcoal canister with a new one (8) Install the charcoal canister to the vehicle (9) Reconnect the rubber hoses and attach new hose bands Terios A Spec other than EU spec B C YEC00018-00017 YEC00019-00000 4-3 INSPECTION OF VSV FOR EVAP Refer to Mention EF YEC00020-00000 TO INDEX TO NEXT SECTION