P0402 OBD Trouble Code
4 results found
| Type | Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled |
|---|---|
| Description | Exhaust Gas Recirculation "A" Flow Excessive Detected |
| 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). |
| Type | Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled |
|---|---|
| Description | Excessive EGR Flow Detected Conditions |
| Cause | No PCM codes set, then the PCM detected that intake manifold pressure was more than a value calculated by PCM during the EGR test with the EGR system commanded on |
| Type | Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled |
|---|---|
| Description | Exhaust gas recirculation (EGR) system - valve malfunction |
| Cause | Wiring, EGR valve, EGR back pressure transducer, hose leak/blockage, CMP sensor, MAF sensor, EGR/EVAP valve, ECM |
Try also: https://www.obd-codes.com/p0402
