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2003 Chevrolet Trailblazer North Face 4.2L MIL Lamp on
This Trailblazer has a reoccuring P0172 code. STFT & LTFT always more negative than positive. Fuel trim index fluctuates between -9 & -17 but I have never seen it as low as -35 which is what it takes to flag P0172. Even looking at freeze data it will not catch...
FIX posted 12/25/2006
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Message Closed w/FIX
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9 Replies Received
9 Replies Received
Related Documents & Media | VIN | 1GNET16S23 |
| Engine | 4.2 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
| Misc. | 4WD |
Trouble Codes
| P0172 | Fuel System Too Rich (Bank 1) |
Message Closed w/FIX
Vehicle Data
2003 Chevrolet Trailblazer North Face
| VIN | 1GNET16S23 |
| Engine | 4.2 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
| Misc. | 4WD |
Trouble Codes
| P0172 | Fuel System Too Rich (Bank 1) |
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