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2005 Pontiac Sunfire 2.2L Running Lean
What could cause vehicle to run lean? LTFT at +25%? Smoke tested and no leaks found Fuel Pump and Filter previously replaced At idle there is 40 PSI at the Rail (manual gauge) KOEO Pressure goes up to 30-40 PSI and immediately drops back to 0
FIX posted 8/24/2016
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Message Closed w/FIX
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12 Replies Received
12 Replies Received
Related Documents & Media | VIN | 3G2JB12F55 |
| Engine | 2.2 L / 4 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Running Lean |
| Occurs | Always |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
Message Closed w/FIX
Vehicle Data
2005 Pontiac Sunfire
| VIN | 3G2JB12F55 |
| Engine | 2.2 L / 4 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Running Lean |
| Occurs | Always |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
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