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P0400 Diagnostic Trouble Code Discussion for June 2011

Exhaust Gas Recirculation System Flow Malfunction

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Trouble Ticket Help Requests for DTC P0400
Help Request Posted
2003 Subaru Outback VDC 3.0L MIL Lamp on VIN: 4S3BH80633
P0400: EGR system flow fault detected. ... consideration on this one. We haven't seen much trouble with this system on these cars and it looks like no one else has either. We have checked all of the 'normal' resources and find no information. The test is rather vague and seems to imply that the EGR...
June 16, 2011