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P0400 Diagnostic Trouble Code Discussion for July 2004

Exhaust Gas Recirculation System Flow Malfunction

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Trouble Ticket Help Requests for DTC P0400
Help Request Posted
1997 Mercury Villager GS 3.0L Stall, MIL Lamp on VIN: 4M2DV1118V
P0400: EGR System Recirculation Flow. ... that is not cooperating - mil light on and codes p0400 stored and p0325 pending - checked egr valve with vacuum pump - held vacuum as well as drop in idle - assumed valve and associated plumbing to be o.. k. released vehic...
July 21, 2004
1998 Mitsubishi Montero Sport LS 3.0L MIL Lamp on VIN: JA4LS31P3W
P0400: Exhaust Gas Recirculation System Flow Malfunction. please help.this montero has generic data.what does the ecm look at to read egr flow.egr system is working properly.thanks for any help in advance.this is a heat case.
July 27, 2004
2000 Mitsubishi Montero Sport LS 3.0L Poor Idle Quality, MIL Lamp on VIN: JA4LS31H3Y
P0400: Exhaust Gas Recirculation System Flow Malfunction. ... light on and a rough idle. I performed the scan tool diagnostics and found a p0400 code for the egr flow malfunction. I pulled the egr valve off to check for carbon peices blocking the pintle. Found some carbon in the egr valve, I serviced the valve and th...
July 27, 2004