2002 Chevrolet Trailblazer LS 4.2L MIL Lamp on
Vehicle came in to my shop do to not passing emmision test,I scanned it and it showed thre [...],P0172 and P0340,I did order the cam sensor and did not install it yet,but I'm testing the fuel trims and can not figure out why it is lean and rich at the same tim...
FIX posted 12/10/2008
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Message Closed w/FIX
Vehicle Data2002 Chevrolet Trailblazer LS
Trouble Codes
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Message Closed w/FIX
Vehicle Data
2002 Chevrolet Trailblazer LS
VIN | 1GNDT13S82 |
Engine | 4.2 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
P0172 | Fuel System Too Rich (Bank 1) |
P0340 | Camshaft Position Sensor 'A' (TDC) Circuit Intermittent |