Question about 2002 Ford Windstar Cargo

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I cannot remember the codes now at it has been a few weeks, but with the device at autozone, the codes said I needed the oxygen sensors replaced. I was hoping that I could just replace maybe one on my 2002 Ford Windstar instead of all three. Someone at my wife's work suggested just changing the one at or near the catalytic converter. I assume that is the one in the front. We just have a few more days on the inspections as the person who has been working on our cars has not been responsive. I think I can replace this or these, hopefully anyway. Any Tips? Thanks, Eric

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Yes, replace one at a time. The downstream sensor is to check how much oxygen is still left in the exhaust & report it to the computer.

The 2 upstream control the fuel mixture through the computer. The code should say which sensor needs replacement.

Posted on Jan 12, 2009


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Another question about my 1999 ford f150. The service engine soon light came on other week and I took it to autozone and they tested it. P0161 was what it read. They gave me a print out and it saids the...

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