DTC Advanced Diagnostics: P050A: General Description
The quick warm-up system increases airflow and retards ignition timing to accelerate the warm-up of the catalyst on cold engine start. The powertrain control module (PCM) compares the measured airflow amount with the requested airflow amount during the quick warm-up. If the measured airflow deviates from the requested air amount, the powertrain control module (PCM) detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | 10 seconds or more |
| DTC Type | Two drive cycles, MIL on |