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1999 Cadillac DeVille 4.6L MIL Lamp on
Vehicle has energized purge and vent solenoid at all times. Power supply checks fine. ECM supplying ground to both solenoids when key is on. Grounds go away when ECU connector containing wires to solenoids is disconnected. Sent to GM had new ECM installed and ...
FIX posted 9/24/2011
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Message Closed w/FIX
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8 Replies Received
8 Replies Received
Related Documents & Media | VIN | 1G6KD54Y3X |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
| Misc. | P0440 |
Trouble Codes
| P0440 | EVAP System Leak Detected |
Message Closed w/FIX
Vehicle Data
1999 Cadillac DeVille
| VIN | 1G6KD54Y3X |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
| Misc. | P0440 |
Trouble Codes
| P0440 | EVAP System Leak Detected |
Video