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I did try doing a search, didn't come up with many results. My car is throwing a P0031 and I have a question which side bank 1 really is? I've read passenger side and also driver's side. What all is involved in replacing the upstream o2 sensor? I'm assuming I have to pull the cat off to get access to it?
Bank 1 is the right side containing cylinders 1-3-5. The upstream sensor is not in the catalytic converter. It is in the exhaust manifold just before the flange connecting them to the cats.
Bank 1 is the right side containing cylinders 1-3-5. The upstream sensor is not in the catalytic converter. It is in the exhaust manifold just before the flange connecting them to the cats.
Page EM-33 of the FSM.
so do I have to pull the cat off to change the sensor?