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1994 Buick Century Custom 3.1L MIL Lamp on
Codes will set after driving a while and pcm will see solinoids fail. Pcm will set codes for the #3 solinoid first, then set code for #2 solinoid next. I can ground out each solinoid and cause egr to work and notice a drop in rpm with each one. I can test driv...
FIX posted 12/23/2004
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Related Documents & Media | VIN | RRR6425548 |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P1404 | EGR Valve Stuck Closed Malfunction |
| P1405 | DPFE Sensor Upstream Hose Off or Plugged |
Message Closed
Vehicle Data
1994 Buick Century Custom
| VIN | RRR6425548 |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P1404 | EGR Valve Stuck Closed Malfunction |
| P1405 | DPFE Sensor Upstream Hose Off or Plugged |
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