P0402 OBD Trouble Code
1 result found
| Type | Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled |
|---|---|
| Description | EGR Excessive Flow Detected Conditions |
| Cause | Engine running at idle speed (closed loop), then the PCM detected that the signal from the DPFE sensor indicated undesired EGR gas flow (idle speed fault). |
Try also: https://www.obd-codes.com/p0402
