User manual KOHLER KD625-2

[. . . ] Air Cleaner and Air Intake System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section 5. Electronic Fuel Injection (EFI) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section 6. Lubrication System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section 7. Electrical System and Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section 8. [. . . ] Code: Component: Fault: 0122 Throttle Position Sensor (TPS) TPS Circuit Low Voltage or Open Component: Fault: Condition: Open connection, broken wire or faulty sensor. Lean condition (check oxygen sensor signal with VOA and see Oxygen Sensor section). Code: Component: Fault: 0132 Oxygen Sensor O2S 1 Circuit High Voltage Code: Component: Fault: 0172 Fuel System Minimum adaptation limit exceeded 4. Fuel (fuel type/quality, injector, fuel pressure too low, fuel pump module or lift pump). Combustion air (air cleaner dirty/restricted, intake leak, throttle bores). Exhaust system leak (muffler, flange, oxygen sensor mounting boss, etc. ). Fuel in the crankcase oil. Condition: Shorted connection or faulty sensor. Difference in voltage between sensed voltage and actual sensor voltage. Code: Component: Fault: 0171 Fuel System Condition: Too high pressure at high pressure fuel line, TPS malfunction, shorted connection, faulty sensor or fuel pump module failure. Difference in voltage between sensed voltage and actual sensor voltage. Fuel (fuel type/quality, injector, fuel pressure too high, fuel pump module or lift pump). After turning key to OFF, wait 10 seconds before turning to ON to allow the ECU to go to sleep. The fuel pump module can be heard or a vibration can be felt to establish pump cycle. Fuel pump module will run for one 4-6 second cycle when ECU wakes up after being asleep. Figure 5-30. Troubleshooting Flow Chart. 5. 35 Section 5 EFI Fuel System Flow Chart Diagnostic Aids Diagnostic Aid #1 SYSTEM POWER (MIL does not illuminate when key is turned ON) NOTE: MIL is installed by vehicle OEM. Kohler key switch model will have MIL on engine with 12V supply to bulb. ECU Diagnostic Aid #2 FAULT CODES (Refer to detailed fault code listing before flow chart and servicing information for the respective components) Code 0031 - Oxygen Sensor Heater Circuit High Voltage Code 0032 - Oxygen Sensor Heater Circuit Low Voltage Code 0107 - Manifold Absolute Pressure Sensor Circuit Low Voltage or Open Code 0108 - Manifold Absolute Pressure Sensor Circuit High Voltage Code 0112 - Intake Air Temperature Sensor Circuit Low Voltage Code 0113 - Intake Air Temperature Sensor Circuit High Voltage or Open Code 0117 - Coolant/Oil Temperature Sensor Circuit Low Voltage Code 0118 - Coolant/Oil Temperature Sensor Circuit High Voltage or Open Code 0122 - TPS Circuit Low Voltage or Open Code 0123 - TPS Circuit High Voltage Code 0131 - O2S 1 Circuit Low Voltage or Open Code 0132 - O2S 1 Circuit High Voltage Code 0171 - Maximum adaptation limit exceeded Code 0172 - Minimum adaptation limit exceeded Code 0174 - Lean fuel condition at high load or open loop Code 0201 - Injector 1 Circuit Malfunction Code 0202 - Injector 2 Circuit Malfunction Code 0230 - Fuel Pump Module Circuit Low Voltage or Open Code 0232 - Fuel Pump Module Circuit High Voltage Code 0336 - Crankshaft Position Sensor Noisy Signal Code 0337 - Crankshaft Position Sensor No Signal Code 0351 - Cylinder 1 Ignition Coil Malfunction Code 0352 - Cylinder 2 Ignition Coil Malfunction Code 0562 - System Voltage Low Code 0563 - System Voltage High Code 61 - End of Code Transmission. Diagnostic Aid #3 RUN/ON (MIL remains ON while engine is running)* Possible causes: 1. NOTE: Either incandescent or LED type bulbs can be used for the MIL as long as they do not draw more than 0. 1 amps. The bulb needs to be rated at 1. 4 Watts or less, or needs to have a total resistance of 140 or more. Diagnostic Aid #4 CRANKSHAFT POSITION SENSOR (MIL does not turn off during cranking) Possible causes: 1. Crankshaft position sensor circuit problem, pin circuits Black 4 and Black 13. [. . . ] See Figures 10-88 and 10-89. 10 Torque Hex Flange Nuts Figure 10-86. Install and tighten the two upper mounting screws securing the air cleaner to the mounting bracket. Install remaining muffler support hardware (screws and nuts) and torque to 9. 9 N·m (88 in. Move the governor lever toward the throttle body as far as it will go (wide-open throttle) and hold in position. [. . . ]