P0401 OBD Trouble Code
1 result found
| Type | Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled |
|---|---|
| Description | EGR System Fault Conditions |
| Cause | Engine speed from 1900-2400 rpm, ECT sensor input over 170°F, closed loop enabled, throttle at off-idle, MAP in mid-range, VSS over 3 mph, then with the EGR test enabled, the PCM detected that the measured change in SHRTFT compensation value shift during the EGR Flow Rate Test was less than 7.4%, or that it was more than 20%. |
Try also: https://www.obd-codes.com/p0401
