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2003 Buick Century 3.1L MIL Lamp on
This car came in with a MIL light on. P0171 lean code .We checked fuel pressure ok,replaced fuel filter and front O2 sensor and light came on again for the [...] were thinking fuel regulator or vacuum leak but dealer said they don't have problems so we decided...
FIX posted 11/6/2005
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Message Closed
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21 Replies Received
21 Replies Received
Related Documents & Media | VIN | [No VIN Available] |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
Message Closed
Vehicle Data
2003 Buick Century
| VIN | [No VIN Available] |
| Engine | 3.1 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
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