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- Jul 26, 2016
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- Vehicle Year
- 1997
- Make / Model
- Ford
- Transmission
- Manual
Hi
1997 Ford Ranger Supercab - 4 cylinder - 5 speed manual transmission - No AC - No modificatione
Check Engine light came on and engine is now running rough and is misfiring, especially at lower speeds/RPMs (seems to run better at 55mph and above). Muffler/exhaust pipe is rattling much more than normal.
Parts store diagnosis reported following codes (each code shows up twice)
4 codes are reported (in following order):
P0141 Oxygen Sensor Heater Circuit Bank 1 Sensor 2
P0402 Exhaust Gas Recirculation Flow (Excessive Detected?)
P0303 Cylinder 3 Misfire Detected
P0171 Bank 1 System Too Lean
Part store recommend I replaced the 02 sensor which I did and seemed to run a little better for a day or so but once again running as described above. Returned to parts store and tester shows same 4 codes (twice).
Do I need to reset the computer after replacing the 02 sensor?
I hope this issue won't destroy the catalytic converter.
Rather than chasing codes I suspect a vacuum leak. Anyone aware of a troubleshooter guide for such an issue or other recommends? Thanks.
1997 Ford Ranger Supercab - 4 cylinder - 5 speed manual transmission - No AC - No modificatione
Check Engine light came on and engine is now running rough and is misfiring, especially at lower speeds/RPMs (seems to run better at 55mph and above). Muffler/exhaust pipe is rattling much more than normal.
Parts store diagnosis reported following codes (each code shows up twice)
4 codes are reported (in following order):
P0141 Oxygen Sensor Heater Circuit Bank 1 Sensor 2
P0402 Exhaust Gas Recirculation Flow (Excessive Detected?)
P0303 Cylinder 3 Misfire Detected
P0171 Bank 1 System Too Lean
Part store recommend I replaced the 02 sensor which I did and seemed to run a little better for a day or so but once again running as described above. Returned to parts store and tester shows same 4 codes (twice).
Do I need to reset the computer after replacing the 02 sensor?
I hope this issue won't destroy the catalytic converter.
Rather than chasing codes I suspect a vacuum leak. Anyone aware of a troubleshooter guide for such an issue or other recommends? Thanks.
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