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1991 Buick LeSabre Custom 3.8L MIL Lamp on
Hello fellow techs. Got a friends car here with the MIL on and displaying code 41, cam sensor circuit fault. Car seems to run okay with no misses or stumbles. Pulled cam sensor and tested for opens and resistance. All looked okay except for a crack on the head...
FIX posted 8/3/2001
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Message Closed w/FIX
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Related Documents & Media 
| VIN | 1G4HP54C1M |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / SEFI |
| Emissions | US FED EMISSIONS |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 41 | Cam sensor circuit fualt |
Message Closed w/FIX
Vehicle Data
1991 Buick LeSabre Custom
| VIN | 1G4HP54C1M |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / SEFI |
| Emissions | US FED EMISSIONS |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 41 | Cam sensor circuit fualt |
Video