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2005 GMC Savana 2500 4.8L Poor Idle Quality, Misfire, MIL Lamp on
LTFT B1 and B2 in the 20's at idle, 1500 and 2500rpm LTFT will go down for a moment off idle. Fuel pressure is @ 62. fuel volunme is good. Smoke checked and carb spryed the intake gasket hot and cold. Adding propane thru the intake cleans up the fuel trims. mo...
FIX posted 4/9/2014
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Message Closed w/FIX
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7 Replies Received
7 Replies Received
Related Documents & Media | VIN | 1GTGG25V05 |
| Engine | 4.8 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
| P0300 | Multiple Misfire Detected |
Message Closed w/FIX
Vehicle Data
2005 GMC Savana 2500
| VIN | 1GTGG25V05 |
| Engine | 4.8 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
| P0300 | Multiple Misfire Detected |
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