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2004 GMC Savana 1500 4.3L Excessive Emissions, Poor Fuel Economy, MIL Lamp on
high fueltrims at all times...under load stft goes thru the roof on both banks,ltft goes down under [...] maf,distributer for po 340 code,fuel gauge sender for evap testing.....need help
FIX posted 2/18/2017
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Message Closed w/FIX
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28 Replies Received
28 Replies Received
Related Documents & Media | VIN | 1GTEG15X04 |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, Poor Fuel Economy, MIL Lamp On |
| Occurs | Always, Under Load |
Trouble Codes
| 171 | lean mixture |
| 174 | lean mixture |
Message Closed w/FIX
Vehicle Data
2004 GMC Savana 1500
| VIN | 1GTEG15X04 |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, Poor Fuel Economy, MIL Lamp On |
| Occurs | Always, Under Load |
Trouble Codes
| 171 | lean mixture |
| 174 | lean mixture |
Video