P0404 Diagnostic Trouble Code Discussion for April 2004
EGR Position Sensor Performance
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| Help Request | Posted | |
| 2003 GMC Sierra 2500 HD SLE 6.6L MIL Lamp on VIN: 1GTHK23153 P0404: EGR Open Position Performance. This truck has a code P0404 code and I need a lttle help troubleshooting. It has low vacuum on the egr vacuum line until I block off the egr valve. As far as I can tell the egr should hold vacuum. If so, then that is my problem. If not, then I could use some h... |
April 01, 2004 | |
| 1996 Kia Sephia GS 1.8L MIL Lamp on VIN: KNAFA1251T P0404: . The car can't be smogged. Won't set readiness codes. This code keeps coming up. I have no experience with Kia. |
April 06, 2004 | |
| 1999 Saturn SL2 1.9L Hesitation, Misfire, MIL Lamp on VIN: 1G8ZJ5276X P0404: EGR solenoid performance problem. Vehicle had a code P0172 and a code P0404. Also the vehcile seems to misfire and/or surge at cruising speed. No missfire codes in the ECM. Idle seems to be a bit hi, around 950-1050 rpm, checked for vacuum leaks, but none found. I did see a posted fix of an i... |
April 12, 2004 | |
| 1999 Saturn SL2 1.9L Hesitation, Misfire, MIL Lamp on VIN: 1G8ZJ5276X P0404: EGR solenoid performance problem. Vehicle had a code P0172 and a code P0404. Also the vehcile seems to misfire and/or surge at cruising speed. No missfire codes in the ECM. Idle seems to be a bit hi, around 950-1050 rpm, checked for vacuum leaks, but none found. I did see a posted fix of an i... |
April 13, 2004 |
