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P0403 Diagnostic Trouble Code Discussion for August 2004

EGR Solenoid Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0403
Help Request Posted
2001 Mitsubishi Diamante LS 3.5L MIL Lamp on VIN: 6MMAP67P11
P0403: EGR Control Solenoid Circuit Malfunction. vehicle came in with a code p0403, it seems to run normal other than the light being on. Have checked for carbon build-up in manifold, which seems ok. If you manually open the egr valve it will make the engine stumble but it will not stall. The solenoid for th...
August 18, 2004