MPV 2003 Rear pre-cat o2 sensor replacment
I would am grateful for any detailed tips on how to replace this 0 2 sensor. Do components need to be removed to gain access? Removing the sensor itself looks doable, but could not see the plug-in end of the assembly.
Also, having replaced the front pre-cat O2 sensor and starting up engine, codes cleared, but engine still idles rough. original codes were: P0131 O2 SENSOR P0171 TOO LEAN BANK 1 P0172 TOO LEAN BANK 2 P0300 MISFIRE a mazda mechanic mentioned something about, if i understood correctly, reseting the computer (or something like that) - - almost as if he was suggesting starting with 02 sensor replacement, but not sure that would take care of the problem. thank you very much for your help. |
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