P0402 OBD Trouble Code
4 results found
Type | Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled |
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Description | Exhaust Gas Recirculation "A" Flow Excessive Detected |
Type | Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled |
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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 |
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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 |
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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