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2002 Cadillac DeVille 4.6L MIL Lamp on
To all gm techs out there. I'm having trouble with this 02 Deville. It set p171 and p174. Fuel trim reads minimum +14% and maximum of +19% in all fuel trim cells. I've replaced boot that connects plenum to throttle body according to GM techline but did no good...
FIX posted 5/28/2003
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Message Closed w/FIX
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6 Replies Received
6 Replies Received
Related Documents & Media | VIN | [No VIN Available] |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
2002 Cadillac DeVille
| VIN | [No VIN Available] |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Video