EFI SYSTEM
50
62 690 05 Rev. E
KohlerEngines.com
Code 0202
Component: Fuel Injector
Fault:
Injector 2 Circuit Malfunction
Condition:
Injector damaged or faulty, shorted or
open connection.
Conclusion: Injector Related
● Injector coil shorted or opened.
Engine Wiring Harness Related
● Broken or shorted wire in harness.
ECU pin Black 6.
● Wiring from Ignition.
ECU Related
● Circuit controlling injector #2 damaged.
Code 0230
Component: Fuel Pump
Fault:
Circuit Low Voltage or Open
Condition:
Shorted or open connection.
Conclusion: Fuel Pump Related
● Fuel pump module open or shorted
internally.
Engine Wiring Harness related
● Broken or shorted wire in harness.
ECU pin Black 9 or Grey 17.
ECU Related
● ECU is damaged.
Code 0232
Component: Fuel Pump
Fault:
Circuit High Voltage
Condition:
Shorted connection.
Conclusion: Fuel Pump Related
● Fuel pump module damaged internally.
Charging Output System Too High.
Code 0336
Component: Crankshaft Position Sensor
Fault:
Crankshaft Position Sensor Noisy Signal
Condition:
Air gap incorrect, loose sensor, faulty/bad
battery, shorted or faulty connection,
faulty sensor or faulty sensor grounding.
Conclusion: Crankshaft Position Sensor Related
● Sensor connector or wiring.
● Sensor loose or air gap incorrect.
Crankshaft Position Sensor Wheel
Related
● Damaged teeth.
● Gap section not registering.
Engine Wiring Harness Related
● Pin circuit wiring or connectors.
ECU pin Black 4 and Black 13.
● ECU-to-harness connection problem.
Ignition System Related
● Non-resistor spark plug(s) used.
● Faulty or disconnected ignition coil or
secondary lead.
Code 0337
NOTE: If fault code P0337 is present and engine does
not start/run, proceed to step 1 of Crankshaft
Position Sensor earlier in this section. If P0337
is present and engine operates, clear codes and
retest.
Component: Crankshaft Position Sensor
Fault:
Crankshaft Position Sensor No Signal
Condition:
Air gap incorrect, loose sensor, open or
shorted connection or faulty sensor.
Conclusion: Crankshaft Position Sensor Related
● A false fault code P0337 is triggered by
a voltage drop with key ON and engine
off . Voltage drop may be caused by a
poor/inadequate battery connection,
battery charger connected or
disconnected, or any event that may
interrupt voltage signal to ECU like a
power interruption or heavy load from
equipment that results in a recordable
voltage drop.
● Sensor connector or wiring.
● Sensor loose or air gap incorrect.
Crankshaft Position Sensor Wheel
Related
● Damaged teeth.
Engine Wiring Harness Related
● Pin circuit wiring or connectors.
ECU pin Black 4 or Black 13.
● ECU-to-harness connection problem.
If code is stored in fault history and starts
normally. Clear code, no other service
required.
