P0400 OBD Trouble Code
1 result found
| Type | Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled |
|---|---|
| Description | EGR System Fault Conditions |
| Cause | Engine runtime over 3 minutes, ECT sensor input over 170°F, engine speed from 1952-2400 rpm in closed loop, MAP input from 1.80-2.70v, TP sensor from 0.6-1.8v, VSS over 3 mph, then with EGR Monitor Test activated, the PCM detected that the amount of EGR gas flow change was too small with the EGR solenoid switched off to on. Refer to Monitor Test, code repair chart to test EGR valve control vacuum circuits and the MDP sensor. |
Try also: https://www.obd-codes.com/p0400
