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P0400 Diagnostic Trouble Code Discussion for January 2006

Exhaust Gas Recirculation System Flow Malfunction

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Trouble Ticket Help Requests for DTC P0400
Help Request Posted
1998 Chevrolet Tracker 1.6L Check Engine Light VIN: 2CNBE136XW
P0400: EGR Code. ... one. My customer came in with a check engine light on. We did a scan and got code P0400. The tech narrowed it down to the EGR vacuum switch. We replaced it and everything seemed fine. The customer came back in and said the light was on again. After pulling...
January 05, 2006
1997 Subaru Legacy Outback 2.5L MIL Lamp on VIN: 4S3BG6853V
P0400: Insufficient EGR System Flow Detected. ... mitchll for our repair information and There is almost no information on how this system operates. We have been thru the diagnostic proceedure several times. The Check engine light keeps coming on with the p0400 dtc in it. We have replaced everything in th...
January 07, 2006
2000 Mitsubishi Mirage DE 1.8L MIL Lamp on, P0400 VIN: JA3AY26C2Y
P0400: Exhaust Gas Recirculation System Flow Malfunction. HAVE MONITERED EGR vacuume during drive cycle. Normal egr vac is 3 or 4 inches. During drive cycle test you can see the vacuume reach almost 10 inches as the PCM tests flow.
January 26, 2006