DTC Description
ECM controls ignition timing and engine idle speed when engine is started with pre-warming up condition. This control promotes the activation of three way catalyst by heating the catalyst and reduces emissions.
DTC DETECTION LOGIC
NOTE:
If DTC P050A is displayed with other DTC, first perform the trouble diagnosis for other DTC.
| DTC No. | Trouble diagnosis name | DTC detecting condition | Possible cause |
|---|---|---|---|
| P050A | Cold start idle air control system performance | ECM does not control engine idle speed properly when engine is started with pre-warming up condition. |
|