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P0400 Diagnostic Trouble Code Discussion for January 2012

Exhaust Gas Recirculation System Flow Malfunction


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Trouble Ticket Help Requests for DTC P0400
Help Request Posted
2005 Jeep Liberty Sport 3.7L MIL Lamp on VIN: 1J4GL48K15
P0400: Egr poor flow. We are at a loss as to this Jeep. It runs perfect except for a reoccuring ck. engine light. What gets me is there are codes for turbo and mass air sensor which this vehicle does not even have. Clear codes perform drive cycle with no problems. 2 weeks later it ...
January 03, 2012
2000 Mazda 626 ES 2.0L MIL Lamp on VIN: 1YVGF22C6Y
P0400: EGR System Flow Malfunction. Please help in anyway you can - we don't know where to go from here.
January 26, 2012
2005 Jeep Liberty Sport 3.7L MIL Lamp on VIN: 1J4GL48K15
P0400: Egr poor flow. We are at a loss as to this Jeep. It runs perfect except for a reoccuring ck. engine light. What gets me is there are codes for turbo and mass air sensor which this vehicle does not even have. Clear codes perform drive cycle with no problems. 2 weeks later it ...
January 03, 2012
2000 Mazda 626 ES 2.0L MIL Lamp on VIN: 1YVGF22C6Y
P0400: EGR System Flow Malfunction. Please help in anyway you can - we don't know where to go from here.
January 26, 2012