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I'm not a mechanic, but I'm pretty sure you have one O2 sensor just before the catalytic converter and one after. The first checks the function of, and regulates, your fuel control unit, and the second checks the efficiency of your catalytic converter. My #1 O2 sensor is screwed into the exhaust pipe about a foot or two before the converter and kind of looks like a spark plug.

On a 2003 Isuzu the O2 sensor is on the driver side of the engine compartment about a foot down from where the exhaust pipe comes out of the header. Just follow the exhaust pipe out of the engine and you will see it. It looks like a spark plug sticking out. It's pretty easy to disconnect the wires, unscrew it and replace it. You will need a 7/8" open end wrench to unscrew it. Good luck. * 1999 Oldsmobile Aurora's actually have 4 O2 sensors, 1 on each header and 1 before, and 1 after the catalytic converter...

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โˆ™ 2008-10-20 14:03:59
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Q: Where is the bank one o2 sensor on an Isuzu Rodeo and how do you change it?
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