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1994 Buick Century Special 3.1L MIL Lamp on
Thanxs in advance,as this is my first post,,any help,,might save,what little hair I have left,,This vehicle runs great,but Mil is on fulltime,we have,tested,and cleaned ecm grounds,rested for shorted EGR Valve(we have seen many of these)tested cam,and cran...
FIX posted 1/29/2000
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Related Documents & Media 
| VIN | 3G4AG55M5R |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
| Misc. | 4Dr,Sedan |
Trouble Codes
| 1404 | E G R Solenoid 2 |
| 1405 | E G R Solenoid 3 |
| 1640 | Quad Driver A Circuit |
| 1650 | Quad Driver B Circuit |
| 321 | IC24X signal |
| 342 | Cam Sensor Signal |
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Vehicle Data
1994 Buick Century Special
| VIN | 3G4AG55M5R |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
| Misc. | 4Dr,Sedan |
Trouble Codes
| 1404 | E G R Solenoid 2 |
| 1405 | E G R Solenoid 3 |
| 1640 | Quad Driver A Circuit |
| 1650 | Quad Driver B Circuit |
| 321 | IC24X signal |
| 342 | Cam Sensor Signal |
Video