P0400 Diagnostic Trouble Code Discussion for February 2004
Exhaust Gas Recirculation System Flow Malfunction
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| Help Request | Posted | |
| 1999 Mitsubishi Mirage DE 1.5L Poor Idle Quality, Hesitation, MIL Lamp on VIN: JA3AY11A0X P0400: Exhaust Gas Recirculation System Flow Malfunction. ... owner came back to say that it is not running correctly, and the "check engine light" is on. It idles slow and rather rough, but does not die. It had always done that in my possession, but without the light. I drove it about 500 miles before I sold... |
February 17, 2004 | |
| 1999 Subaru Legacy Limited 30th Anniversary 2.5L MIL Lamp on VIN: 4S3BG6852X P0400: Insufficient EGR System Flow Detected. DTC P0400 egr system malfunction. It seems that the PCM is barely triggering the EGR system, the vehicle has a new PCM installed. Monitored activity of EGR and for first few days it was pretty lively. Then the activity declined and the MIL came back on. When t... |
February 27, 2004 |
