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P0403 Diagnostic Trouble Code Discussion for June 2006

EGR Solenoid Circuit Malfunction


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Trouble Ticket Help Requests for DTC P0403
Help Request Posted
2002 Ford F-150 King Ranch 4.6L MIL Lamp on VIN: 1FTRX17W92
P0403: EGR Circuit fault. Help!!! I've removed the ECM & traced wires to no avail. All wiring test good from ECM to respective pigtails. The DPFE sensor has 1.02-1.12 volts with EGR closed. Open the EGR at idle and the DPFE voltage only goes to 2.65v. Spec says it should be 4.5v. W...
June 20, 2006
2002 Ford F-150 King Ranch 4.6L MIL Lamp on VIN: 1FTRX17W92
P0403: EGR Circuit fault. Help!!! I've removed the ECM & traced wires to no avail. All wiring test good from ECM to respective pigtails. The DPFE sensor has 1.02-1.12 volts with EGR closed. Open the EGR at idle and the DPFE voltage only goes to 2.65v. Spec says it should be 4.5v. W...
June 21, 2006
2004 Ford F-150 Heritage XL 4.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 2FTRF17WX4
P0403: cyl 3 misfire. Bear with me ford techs. This is a real hair puller. Truck came in with multiple misfires, mostly on bank 1. Checked cat, and it was plugged almost totally. Replaced all cats on both sides with oem parts. After we got the truck back from the exhaust shop. I in...
June 28, 2006
2002 Ford F-150 King Ranch 4.6L MIL Lamp on VIN: 1FTRX17W92
P0403: EGR Circuit fault. Help!!! I've removed the ECM & traced wires to no avail. All wiring test good from ECM to respective pigtails. The DPFE sensor has 1.02-1.12 volts with EGR closed. Open the EGR at idle and the DPFE voltage only goes to 2.65v. Spec says it should be 4.5v. W...
June 20, 2006
2002 Ford F-150 King Ranch 4.6L MIL Lamp on VIN: 1FTRX17W92
P0403: EGR Circuit fault. Help!!! I've removed the ECM & traced wires to no avail. All wiring test good from ECM to respective pigtails. The DPFE sensor has 1.02-1.12 volts with EGR closed. Open the EGR at idle and the DPFE voltage only goes to 2.65v. Spec says it should be 4.5v. W...
June 21, 2006
2004 Ford F-150 Heritage XL 4.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 2FTRF17WX4
P0403: cyl 3 misfire. Bear with me ford techs. This is a real hair puller. Truck came in with multiple misfires, mostly on bank 1. Checked cat, and it was plugged almost totally. Replaced all cats on both sides with oem parts. After we got the truck back from the exhaust shop. I in...
June 28, 2006