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1996 Mazda 626 DX 2.0L MIL Lamp on
po171 code reappears after I installed a pre-cat 02 sensor after a couple days. Cleared code and it keeps coming back. Checked for vac leaks, fuel pressure etc. po171 is lean exhaust bank one. There is no exhaust leaks either.
FIX posted 10/18/2000
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Related Documents & Media 
| VIN | IYVGF22COT |
| Engine | 2.0 L / 4 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Cruise |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
Message Closed w/FIX
Vehicle Data
1996 Mazda 626 DX
| VIN | IYVGF22COT |
| Engine | 2.0 L / 4 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Cruise |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
Video