DTC P050A Cold Start Idle Air Control System Performance: Description
The Electronic Throttle Control System (ETCS) controls the engine idling speed. The ETCS operates the throttle actuator to open and close the throttle valve, and adjusts the intake air amount to achieve the target idling speed.
In addition, the ECM retards the ignition timing and the ETCS increases the intake air amount to quickly increase the catalyst temperature at cold start to reduce emissions.
DTC TROUBLE DETECTION CONDITION CHART
| DTC No. | DTC Detection Condition | Trouble Areas |
|---|---|---|
| P050A | Accumulated intake air amount during 10 seconds of idling after cold start, less than threshold (2 trip detection logic) |
|