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29/05/2023 6:58 pm
Topic starter
1999 Lincoln Towncar throws a P0171 and a P0174 error code.
Replaced 3 of the O2 Sensors except Bank 1 Sensor 1 because the part I bought had too short of a wire. Now only throws a P0171 code. Was I right in thinking it was the oxygen sensors? Or is there something else I should check before buying another Sensor?
1 Answer
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29/05/2023 7:07 pm
You'll find a rundown of possible causes here:
https://axleaddict.com/auto-repair/Trouble-Code-P0171-and-P0174-Diagnostic
