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1answer
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Loosening O2 sensors with brake fluid?

So my 2010 Prius recently got a code for the upstream O2 sensors heater circuit (P0031) and I tested the heating coil and the circuit is not complete so I ordered a new one. The old one obviously is ...
9
votes
4answers
31k views

How to Unscrew/loosen stuck O2 sensor

I have been trying to unscrew my faulty O2 sensor (to replace it with a new one I purchased) in a 2001 Honda Accord, with a F23A4 engine, per the following instructions: http://www.amazon.com/review/...