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1996 GMC C1500 Sierra SL 5.7L MIL Lamp on
Hello fellow techs, The customer states that the MIL comes at around 1/4 tank checked codes P0172,P0175 both banks too rich. Looking at O2 sensor voltages the readings are pretty much the same between the ones in front of the convertors and the ones behind. Ch...
FIX posted 8/25/2000
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| VIN | 2GTEC19R1T |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / Vortec |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P0172 | Fuel System Too Rich (Bank 1) |
| P0175 | Fuel System Too Lean (Bank 2) |
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Vehicle Data
1996 GMC C1500 Sierra SL
| VIN | 2GTEC19R1T |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / Vortec |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P0172 | Fuel System Too Rich (Bank 1) |
| P0175 | Fuel System Too Lean (Bank 2) |
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