Kohler KG2204 Service page 39

P-Code SPN FMI
P2192 1695 16
P2195 3217 18
P2196 3217 16
P2231 3217 14
P2243 3217 5
P2261 1127 7
P2262 1127 7
TP-6903 5/16a
Description
System Too Rich at
Higher Load.
HEGO sensor Signal
Stuck Lean B1S1
HEGO sensor Signal
Stuck Rich B1S1
HEGO sensor Signal
Circuit Shorted to
Heater Circuit
Oxygen Sensor
Reference Circuit Bank
1 Sensor 1
Turbo/Super Charger
Bypass Valve -
Mechanical
Turbo Boost Pressure
Not Detected -
Mechanical
Possible Cause
 Problem with the
closed-loop feedback
control.
 Problem with the
closed-loop feedback
control.
 Problem with high
fuel pressure, intake
and exhaust
restrictions, or the
HEGO sensor.
 HEGO heater
causing interference
with the HEGO
signal.
 Problem with HEGO
sensor or leads.
 HEGO heater
causing interference
with the HEGO
signal.
 Problem with HEGO
sensor or leads.
 Only supported with
the turbo version of
the engine.
 Boost pressure was
not limited during a
decal.
 Problem with the
boost limiting circuit.
 Only supported with
the turbo version of
the engine.
 No boost pressure
detected.
Corrective Action
 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.
 Check for misfires.
 Check fuel quality.
 Check fuel pressure regulator and
outlet pressure.
 Check for exhaust leaks.
 Troubleshoot the HEGO sensor
for bad leads. Refer to
Section 4.7.
 Replace the HEGO sensor. Refer
to Section 5.7.
 Check for restrictions in the air
intake system and air cleaner.
 Check fuel pressure regulator and
outlet pressure.
 Check for exhaust restrictions.
 Troubleshoot the HEGO sensor
for bad leads. Refer to
Section 4.7.
 Replace the HEGO sensor. Refer
to Section 5.7.
 Troubleshoot the HEGO sensor
for bad leads. Refer to
Section 4.7.
 Replace the HEGO sensor. Refer
to Section 5.7.
 Troubleshoot the HEGO sensor
for bad leads. Refer to
Section 4.7.
 Replace the HEGO sensor. Refer
to Section 5.7.
 Check the boost pressure sensor
connection.
 Check for disconnected hoses or
leaks in the boost pressure air
path.
 Check for leakage past the boost
valve diaphragm by applying
vacuum to the control port.
 Replace the valve.
 Check the post pressure sensor
connection.
 Check the air ducting for secure
connections.
 Check the turbocharger for
seizing.
Diagnostic Troubleshooting Codes 39