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2001 Chevrolet Express 3500 8.1L MIL Lamp on, No throttle
We have been wrestling with this beast for a long time! As you can see in history, we or another shop have replaced almost everything to try to fix this. The problem is very random. You will be driving along and the "reduced power" light will come on and the t...
FIX posted 8/4/2009
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Message Closed
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7 Replies Received
7 Replies Received
Related Documents & Media | VIN | 1GBJG31G71 |
| Engine | 8.1 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp on, No Throttle |
| Occurs | Intermittently |
Trouble Codes
| P1120 | TP Sensor 1 Circuit Malfunction |
| P1221 | TP Sensor 2 1-2 Correlation |
Message Closed
Vehicle Data
2001 Chevrolet Express 3500
| VIN | 1GBJG31G71 |
| Engine | 8.1 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp on, No Throttle |
| Occurs | Intermittently |
Trouble Codes
| P1120 | TP Sensor 1 Circuit Malfunction |
| P1221 | TP Sensor 2 1-2 Correlation |
Video