P050E - Cold Start Engine Exhaust Temperature Out Of Range
| Description: | The powertrain control module (PCM) calculates the actual catalyst warm up temperature during a cold start. The PCM then compares the actual temperature to the expected catalyst temperature model. The difference between the actual and expected temperatures is a ratio. When this ratio exceeds the calibrated value this DTC is set and the malfunction indicator lamp (MIL) illuminates. | ||
| Possible Causes: |
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| Diagnostic Aids: | Disregard the freeze frame data. Freeze frame data does not apply to the cold start monitor. This DTC is informational only and may be accompanied by other DTCs. Diagnose other DTCs first. If no other DTCs are present, inspect the intake air system for air restrictions, vacuum leaks, and damage. If no concerns are present, clear the DTCs and verify the engine coolant temperature (ECT) is below 37.8° C (100°F). Allow the vehicle to soak for 2-3 hours if necessary for the ECT to fall below 37.8° C (100°F). Start the engine without touching the accelerator pedal and allow the engine to idle for 15 seconds in park, then drive with the engine on for 6 minutes. If no DTCs are present and the malfunction indicator lamp (MIL) is not illuminated after idling with the engine on for 15 seconds in park and driving with the engine on for 6 minutes, carry out the key ON engine running (KOER) self-test to confirm that no DTCs are present and the repair is complete. |
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| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | Refer to the P052A - COLD START CAMSHAFT POSITION TIMING OVER-ADVANCED (BANK 1) Description, Possible Causes and Diagnostic Aids for the DTC. | ||