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P0404 Diagnostic Trouble Code Discussion for April 2005

EGR Position Sensor Performance

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Trouble Ticket Help Requests for DTC P0404
Help Request Posted
1997 Saturn SL1 1.9L Stall VIN: 1G8ZH5287V
P0404: EGR circuit malfuntion. ... at our shop with an intermitant stalling problem,but restarts easily and may run fine when restarted. Scanner read code P0404, EGR circuit malfunction. We performed dtc test and it is leading us to a faulty Pcm. My question is when we removed the EGR valv...
April 09, 2005
2001 Buick Park Avenue 3.8L MIL Lamp on VIN: 1G4CW54K71
P0404: EGR Open Position Signal Performance. ... codes, customer took car on a 400 mile trip with no light on. She started it in the garage the other day and as soon as she started it the SES light came on steady. I checked for and found the same codes (P0440 and P0404). Th...
April 12, 2005