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
| DTC No. | CONSULT screen terms (Trouble diagnosis content) |
DTC detecting condition |
|---|---|---|
| P050A | COLD START CONTROL (Cold start idle air control system performance) |
ECM does not control engine idle speed properly when engine is started with pre-warming up condition. |
POSSIBLE CAUSE
- Lack of intake air volume
- Fuel injection system
- ECM
FAIL-SAFE
Not applicable