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2006 GMC Canyon SLE 2.8L MIL Lamp on
Engine would not idle with DTC P0171, lean condition. Found MAP sensor cracked at base & leaking vacuum. Replaced MAP sensor with OEM GM part. Idle now good but DTC returned during road test. Data stream showed short term fuel trim at idle fluctuated betwe...
Summary posted 4/23/2026
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Related Documents & Media | VIN | 1GTCS14826 |
| Engine | 2.8 L / 4 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | Fuel Injection / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
Message Closed w/Summary
Vehicle Data
2006 GMC Canyon SLE
| VIN | 1GTCS14826 |
| Engine | 2.8 L / 4 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | Fuel Injection / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
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