Chrysler 2005 Crossfire SRT6 Service Manual page 2175

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(P0172) FUEL SYSTEM 1/1 LEAN CONTROL BELOW LIMIT (AT IDLE) (CONTINUED)
When Monitored and Set Condition
• When Monitored: With the engine running in closed loop mode, the ambient/battery temperature above -7°C
(20°F), altitude below 2590m (8500 ft). and fuel level greater than 15%.
• Set Condition: If the PCM multiplies short term compensation by long term adaptive and a certain percentage
is exceeded for two trips, the MIL illuminates and a trouble code is stored.
RESTRICTED FUEL SUPPLY LINE
FUEL PUMP INLET STRAINER PLUGGED
O2 SENSOR SIGNAL CIRCUIT
O2 SENSOR GROUND CIRCUIT
O2 SENSOR HEATER OPERATION
MANIFOLD ABSOLUTE PRESSURE SENSOR OPERATION
ENGINE COOLANT TEMPERATURE SENSOR OPERATION
ENGINE MECHANICAL PROBLEM
O2 SENSOR
FUEL PUMP
FUEL CONTAMINATION/EXHAUST LEAK
For a complete Powertrain Control Module Circuit Diagram, (Refer to 9 - ENGINE - SCHEMATICS AND DIA-
GRAMS).
Diagnostic Test
1.
CHECK FOR CURRENT DTC
Turn the ignition on.
With the DRB III , read PCM DTCs.
Is this DTC present?
Yes >> For complete diagnosis of this DTC, refer to (P0172)
FUEL SYSTEM 1/1 LEAN CONTROL BELOW LIMIT (AT
LOAD).
No >> Go To 2
ENGINE - ELECTRICAL DIAGNOSTICS 9 - 251
POSSIBLE CAUSES