Kohler KG2204T

38 Diagnostic Troubleshooting Codes TP-6903 5/16a
P-Code SPN FMI Description Possible Cause Corrective Action
P2177 1695 18 System Too Lean Off
Idle
 Problem with the
closed-loop feedback
control.
 Check for misfires.
 Check fuel quality.
 Check fuel pressure regulator and
outlet pressure.
 Check for exhaust leaks.
 Check for intake manifold leaks.
 Troubleshoot the HEGO sensor
for bad leads. Refer to
Section 4.7.
 Replace the HEGO sensor. Refer
to Section 5.7.
P2178 1695 16 System Too Rich Off
Idle
 Problem with the
closed-loop feedback
control.
 Check for misfires.
 Check fuel quality.
 Check fuel pressure regulator and
outlet pressure.
 Check for exhaust leaks.
 Check for intake manifold leaks.
 Troubleshoot the HEGO sensor
for bad leads. Refer to
Section 4.7.
 Replace the HEGO sensor. Refer
to Section 5.7.
P2187 1695 18 System Too Lean at Idle
 Problem with the
closed-loop feedback
control.
 Check for misfires.
 Check fuel quality.
 Check fuel pressure regulator and
outlet pressure.
 Check for exhaust leaks.
 Check for intake manifold leaks.
 Troubleshoot the HEGO sensor
for bad leads. Refer to
Section 4.7.
 Replace the HEGO sensor. Refer
to Section 5.7.
P2188 1695 16 System Rich at Idle
 Problem with the
closed-loop feedback
control.
 Check for misfires.
 Check fuel quality.
 Check fuel pressure regulator and
outlet pressure.
 Check for exhaust leaks.
 Check for intake manifold leaks.
 Troubleshoot the HEGO sensor
for bad leads. Refer to
Section 4.7.
 Replace the HEGO sensor. Refer
to Section 5.7.
P2191 1695 18 System too Lean at
Higher Load
 Problem with the
closed-loop feedback
control.
 Check for misfires.
 Check fuel quality.
 Check fuel pressure regulator and
outlet pressure.
 Check for exhaust leaks.
 Check for intake manifold leaks.
 Troubleshoot the HEGO sensor
for bad leads. Refer to
Section 4.7.
 Replace the HEGO sensor. Refer
to Section 5.7.