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P0403 Diagnostic Trouble Code Discussion for December 2005

EGR Solenoid Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0403
Help Request Posted
2001 Mitsubishi Galant ES 3.0L MIL Lamp on VIN: 4A3AA46H71
P0403: EGR Vacuum Regulator Solenoid Circuit Malfunction. Hello out there. I am a GM tech with this Mitsubishi in my bay. It is a used car we just sold, therefore I have no history on this vehicle. The MIL comes on, the EGR code is the only code. (Snap on scan tool). I applied vacuum to the egr, It opens and the engi...
December 21, 2005