Question about 2001 Ford Taurus
The code P0135 is for high resistance or short in wiring harness or oxygen sensor bank 1, bank 1 is the bank with cylinder number 1, check the harness wiring to the O2 sensor if all is ok you should replace the O2 sensor, the P1131(bank 1 lean) code is more than likely a resulting code from the P0135. Let me know if this helps
Posted on Jun 17, 2009
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Posted on Jan 02, 2017
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