User Manual

4324 690 01 Rev. D KohlerEngines.com
Code 0172
Component: Fuel System
Fault: Minimum adaptation limit exceeded
Condition: Too high pressure at high pressure fuel
line, TPS malfunction, shorted
connection, faulty sensor or fuel pump
module failure.
Conclusion: Oxygen Sensor Related
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ECU Black pin 10 or 17.
TPS Sensor Related
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Learn procedure.
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Engine Wiring Harness Related
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voltage and actual sensor voltage.
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Systems Related
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coil).
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pressure too high, fuel pump module or
lift pump).
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restricted).
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Code 0174
Component: Fuel System
Fault: Lean fuel condition
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pressure at high pressure fuel line, TPS
malfunction, shorted connection or faulty
sensor.
Conclusion: TPS Learn Incorrect
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signal with VOA and see Oxygen
Sensor).
Engine Wiring Harness Related
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ECU pin Black 10, 12, 16 and 17.
Low Fuel Pressure
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Oxygen Sensor Related
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Poor system ground from ECU to engine,
causing rich running while indicating lean.
Fuel pump module connection. See Fuel
Components.
Code 0201
Component: Fuel Injector
Fault: Injector 1 Circuit Malfunction
Condition: Injector damaged or faulty, shorted or
open connection.
Conclusion: Injector Related
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Engine Wiring Harness Related
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ECU pin Black 5.
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ECU Related
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