P0400 OBD Trouble Code
1 result found
| Type | Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled |
|---|---|
| Description | Exhaust gas recirculation (EGR) system - flow excessively high or low |
| Cause | Wiring, hose leak/blockage, EGR valve, EGR/EVAP valve, ECM |
Try also: https://www.obd-codes.com/p0400
