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1994 Buick Century Special 3.1L EGR problem
The car every 8,000 to 10,000 miles will turn the check eng light on, with a P1405 code for EGR #3 solenoid. Every time the intake manifold is clogged with carbon deposits. We have clean out the manifold twice in the last 18,000 miles, and its back in here...
FIX posted 10/16/1999
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| VIN | 3G4AG55MXR |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | EGR Problem |
| Occurs | After 10,000 Miles |
Trouble Codes
| P1405 | DPFE Sensor Upstream Hose Off or Plugged |
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Vehicle Data
1994 Buick Century Special
| VIN | 3G4AG55MXR |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | EGR Problem |
| Occurs | After 10,000 Miles |
Trouble Codes
| P1405 | DPFE Sensor Upstream Hose Off or Plugged |
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