Kohler KG2204 Service page 68

Action
 Turn the ECM power OFF.
 Disconnect the Fuel Control Valve (FCV) connector.
 Using a DVOM, check the resistance between the two pins of the
FCV solenoid
Does the DVOM show a resistance value greater than 42 Ohms?
Does the DVOM show a resistance value of less than 30 Ohms?
 With the ECM power OFF, disconnect the ECM wire harness
connector.
 Using a DVOM, check continuity between FCV connector pin 2 and
ECM connector P26 pin 22.
Does the DVOM show continuity?
Using a DVOM, check for continuity between FCV connector pin 2 and
engine ground.
Does the DVOM show continuity?
Inspect the ECM wire harness and connector and FCV connector for
damage, corrosion, or contamination.
Did a problem exist?
Replace the fuel control valve. Refer to Section 5.5.
 Remove all test equipment except Spectrum.
 Connect any disconnected components.
 Using Spectrum software, clear DTC information from the ECM.
 Turn the ECM power OFF and wait 30 seconds.
 Start the engine and operate to full operating temperature.
 Observe the engine performance.
 After operating the engine, check for any stored codes.
Does the engine operate normally with no stored codes?
 Replace the ECM. Refer to Section 5.4.
Is the replacement complete?
 Remove all test equipment except Spectrum.
 Connect any disconnected components.
 Using Spectrum software, clear DTC information from the ECM.
 Turn the ECM power OFF and wait 30 seconds.
 Start the engine and operate to full operating temperature.
 Observe the engine performance.
 After operating the engine, check for any stored codes.
Does the engine operate normally with no stored codes?
Figure 4-13 Fuel Control Valve Troubleshooting
68 Electrical System and Sensor Troubleshooting
Yes No
Replace the FCV. Go to the next step.
Repair the open FCV
Go to the next step. control circuit as
required.
Repair the shorted to
ground FCV control Go to the next step.
circuit as required.
Correct the problem
Go to the next step.
as required.
Go to the next step.
System OK. Go to the next step.
Go to the next step.
Restart the fuel control
valve troubleshooting
System OK. procedure. Look for
other DTC codes
stored in the ECM.
TP-6903 5/16a