Land Rover Common Rail System Crs Denso Manual
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Repair Section2–11 6 7 Check the Exhaust Gas Recirculation (EGR) system. (Refer to the EGR system check proce- dure issued by the vehicle manufacturer.)Repair or replace the EGR system. 8 Perform the accelerator pedal position sensor function check. (Refer to the accelerator posi- tion pedal sensor check procedure issued by the vehicle manufacturer.)Repair or replace the accelerator position sen- sor and/or the corresponding circuit. 9 Check the boost pressure sensor and the corre- sponding circuit. (Refer to the boost pressure sensor check procedure issued by the vehicle manufacturer.)Repair or replace the boost pressure sensor and/or the corresponding circuit. 10 Check the supply pump and the supply pump drive circuit. (Refer to the supply pump drive cir- cuit diagram issued by the vehicle manufac- turer.)Repair or replace the supply pump and drive cir- cuit. Troubleshooting complete NG OK NG OK NG OK NG OK
Repair Section2–11 7 (10) Knocking, abnormal noise Clogged air cleaner element Description Abnormal combustion occurs, and a knocking sound is generated. Possible Cause • Engine • Injector • Glow control system • Crankshaft position sensor 1 Repair the glow control system. (Refer to the glow control system check procedure issued by the vehicle manufacturer.)Repair the glow control system. 2 Check the crankshaft position sensor. (Refer to the crankshaft position sensor check procedure issued by the vehicle manufacturer.)Repair or replace the crankshaft position sensor and/or the corresponding circuit. 3 Check each injector. (Refer to the injector check procedure issued by the vehicle manufacturer.)Repair or replace the injector and/or the corre- sponding circuit. 4 Check engine parts that may be a source of abnormal combustion.Repair the engine. Troubleshooting complete NG OK NG OK NG OK NG OK
Repair Section2–11 8 (11) Poor fuel economy Clogged air cleaner element Description More fuel than normal is being consumed. Possible Cause • Engine • Injector • Supply pump 1 Check each injector. (Refer to the injector check procedure issued by the vehicle manufacturer.)Repair or replace the injector and/or the corre- sponding circuit. 2 Check the supply pump and the supply pump drive circuit. (Refer to the supply pump drive cir- cuit diagram issued by the vehicle manufac- turer.)Repair or replace the supply pump and drive cir- cuit. 3 Check parts that may be a source of poor fuel economy.Repair the engine. Troubleshooting complete NG OK NG OK NG OK
Repair Section2–11 9 (12) Black Smoke Clogged air cleaner element Description Black smoke is being exhausted. Possible Cause • Injector • Supply pump • EGR system • Engine ECU • Electronic control throttle • Rail pressure sensor • Mass Air Flow (MAF) meter • Boost pressure sensor 1 Check for air cleaner clogging and/or damage. Replace the air cleaner or repair the air duct. 2 Check the electronic control throttle and the cor- responding circuit. (Refer to the electronic con- trol throttle check procedure issued by the vehicle manufacturer.)Repair or replace the electronic control throttle and/or the corresponding circuit. 3 Check the MAF meter and the corresponding circuit. (Refer to the MAF meter check proce- dure issued by the vehicle manufacturer.)Repair or replace the MAF meter and/or the cor- responding circuit. 4 Check the Exhaust Gas Recirculation (EGR) system. (Refer to the EGR system check proce- dure issued by the vehicle manufacturer.)Repair or replace the EGR system. 5 Check the boost pressure sensor and the corre- sponding circuit. (Refer to the boost pressure sensor check procedure issued by the vehicle manufacturer.)Repair or replace the boost pressure sensor and/or the corresponding circuit. 6 Check the rail pressure sensor and the corre- sponding circuit. (Refer to the rail pressure sen- sor check procedure issued by the vehicle manufacturer.)Repair or replace the rail pressure sensor and the corresponding circuit. NG OK NG OK NG OK NG OK NG OK NG
Repair Section2–120 7 Check each injector. (Refer to the injector check procedure issued by the vehicle manufacturer.)Repair or replace the injector and/or the corre- sponding circuit. 8 Check the engine ECU power supply. (Refer to the engine ECU power supply circuit diagram issued by the vehicle manufacturer.)Repair the engine ECU power supply. 9 Check the supply pump and the supply pump drive circuit. (Refer to the supply pump drive cir- cuit diagram issued by the vehicle manufac- turer.)Repair or replace the supply pump and drive cir- cuit. Troubleshooting complete OK NG OK NG OK NG OK
Repair Section2–121 (13) White smoke Clogged air cleaner element Description White smoke is being exhausted. Possible Cause • Fuel filter • Injector • Supply pump • EGR system • Engine ECU • Electronic control throttle • Rail pressure sensor 1 Check the fuel filter. Replace the fuel filter. 2 Check each injector. (Refer to the injector check procedure issued by the vehicle manufacturer.)Repair or replace the injector and/or the corre- sponding circuit. 3 Check the Exhaust Gas Recirculation (EGR) system. (Refer to the EGR system check proce- dure issued by the vehicle manufacturer.)Repair or replace the EGR system. 4 Check the supply pump and the supply pump drive circuit. (Refer to the supply pump drive cir- cuit diagram issued by the vehicle manufac- turer.)Repair or replace the supply pump and drive cir- cuit. 5 Check the rail pressure sensor and the corre- sponding circuit. (Refer to the rail pressure sen- sor check procedure issued by the vehicle manufacturer.)Repair or replace the rail pressure sensor and the corresponding circuit. 6 Check the electronic control throttle and the cor- responding circuit. (Refer to the electronic con- trol throttle check procedure issued by the vehicle manufacturer.)Repair or replace the electronic control throttle and/or the corresponding circuit. Troubleshooting complete NG OK NG OK NG OK NG OK NG OK NG OK
Repair Section2–122 5.2 Other Malfunction Symptoms Malfunctions caused by components other than the CRS zThere are occasions when a malfunction that appears to be generated by the CRS is actually caused by a different com- ponent or system. For instance, engine mechanical parts and the fuel system may cause malfunction symptoms iden- tical to symptoms generated by the CRS. When troubleshooting, do not simply assume that the source of a malfunction is the CRS. Consider all causes should be exhaustively considered while verifying the list below. Malfunction SymptomFaulty ItemCauseAction Insufficient PowerIntake system Clogged air cleaner element Clean or replace the air cleaner element. Fuel systemAir mixed with the fuel system Perform fuel system air bleeding. Faulty fuel filter Replace the filter. Insufficient fuel Add fuel and perform fuel system air bleeding. Improper fuel Switch to the correct fuel. EngineCompression pressure abnormality Refer to the engine repair manual. Piston, cylinder liner and/or piston ring Other Overheat Faulty startingIntake system Clogged air cleaner element Clean or replace the air cleaner element. Fuel systemInsufficient fuel Add fuel and perform fuel system air bleeding. Improper fuel Replace the filter. Fuel system clog Clean the fuel system. Air introduction through fuel system con- nection pointsTighten all connections. Fuel filter clog Replace the fuel filter. Loose injection piping connections Tighten connecting nuts. Electrical sys- temFaulty battery Check the battery. Faulty starter wiring Replace the starter wiring. Loose battery cables Tighten the battery terminal connections, or replace the cables. Faulty startingElectrical sys- temFaulty starter operation Replace the starter assembly. Faulty glow plug systemReplace the glow plugs. Lubrication systemExcessive engine oil viscosity Replace with oil of appropriate viscosity. EngineBurnt pistons Replace the piston, piston ring and cylin- der liner. Burnt bearings Replace the bearing and crankshaft. Low compression pressure Overhaul the engine. OtherRing gear damage Replace the ring gear and/or starter pin- ion gear.
Repair Section2–123 Faulty idling EnginePoor valve clearance Adjust the valve clearance or replace the bearing. Poor valve seat contact Break in, or replace the valve and valve seat. Low coolant temperature Perform warm-up operation. Large difference in cylinder-to-cylinder compression pressureOverhaul the engine. Malfunction SymptomFaulty ItemCauseAction
Repair Section2–124 6. DIAGNOSIS CODES (DTC) 6.1 DTC Chart (Example) DTC Structure zP####: Powertrain-related (engine, drive system) zU####: Network-related (vehicle communication) DTC Assignment zPO###: Determined by SAE/ISO zP1###: Determined by manufacturer zP2###: Determined by manufacturer zP3###: Mixture of items determined by SAE/ISO and items determined by the vehicle manufacturer. DTC Chart (example for HINO and TOYOTA vehicles) zDTC codes that apply to the CRS are listed below (compatible with the DST-2.) DTCDTC Description P0006 Fuel shutoff valve A control circuit low voltage P0007 Fuel shutoff valve A control circuit high voltage P0016 Crankshaft position sensor, cylinder recognition sensor correlation P0030 A/F sensor heater control circuit P0031 A/F sensor heater control circuit low voltage P0032 A/F sensor heater control circuit high voltage P0036 A/F sensor heater control circuit P0037 A/F sensor heater control circuit low voltage P0045 Turbo/supercharger control solenoid open circuit P0049 Turbo/supercharger overspeed P0087 Fuel/rail pressure too low P0088 Fuel/rail pressure too high P0093 Fuel system leak maximum quantity detection P0095 Intake air temperature sensor 2, circuit related P0097 Intake air temperature sensor 2 circuit low voltage P0098 Intake air temperature sensor 2 circuit high voltage P0100 Mass Air Flow (MAF) meter, circuit related P0101 MAF meter circuit range/performance P0102 MAF meter circuit low input P0103 MAF meter circuit high input P0105 Boost pressure sensor, circuit related P0107 Boost pressure sensor circuit low input P0108 Boost pressure sensor circuit high input P0112 Boost pressure sensor 1 circuit low voltage P0113 Boost pressure sensor 1 circuit high voltage P0115 Coolant temperature sensor, circuit related P0117 Coolant temperature sensor circuit low voltage
Repair Section2–125 P0118 Coolant temperature sensor circuit high voltage P0119 Coolant temperature sensor circuit intermittent operation P0120 Accelerator position sensor, switch A circuit related P0121 Accelerator position sensor switch A circuit range/performance P0122 Accelerator position sensor switch A circuit low voltage P0123 Accelerator position sensor switch A circuit high voltage P0124 Accelerator position sensor switch A circuit intermittent operation P0168 Fuel temperature too high P0180 Fuel temperature sensor, A circuit related P0181 Fuel temperature sensor A circuit range/performance P0182 Fuel temperature sensor A circuit low voltage P0183 Fuel temperature sensor A circuit high voltage P0184 Fuel temperature sensor A circuit intermittent operation P0185 Fuel temperature sensor, B circuit related P0186 Fuel temperature sensor B circuit range/performance P0187 Fuel temperature sensor B circuit low voltage P0188 Fuel temperature sensor B circuit high voltage P0189 Fuel temperature sensor, B circuit intermittent operation P0190 Rail pressure sensor, circuit related P0191 Rail pressure sensor circuit range/performance P0192 Rail pressure sensor circuit low voltage P0193 Rail pressure sensor circuit high voltage P0194 Rail pressure sensor circuit intermittent operation P0200 Injector open circuit P0201 Injector open circuit- #1 cylinder P0202 Injector open circuit- #2 cylinder P0203 Injector open circuit- #3 cylinder P0204 Injector open circuit- #4 cylinder P0205 Injector open circuit- #5 cylinder P0206 Injector open circuit- #6 cylinder P0208 Injector open circuit- #8 cylinder P0217 Engine overheat P0218 Transmission overheat P0219 Engine overrun P0230 Fuel pump, primary circuit related P0234 Turbo/supercharger overboost P0237 Boost pressure sensor circuit low voltage P0263 Cylinder correction quantity error- #1 cylinder P0266 Cylinder correction quantity error- #2 cylinder P0269 Cylinder correction quantity error- #3 cylinder P0272 Cylinder correction quantity error- #4 cylinder DTCDTC Description