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Update 1998EXP You hit the problem right on the head. Once you described your problem it was very easy to find. I wanted to make sure it was fixed before I reported, but the check engine light has not come in more than 1000 miles. Thanks for the info. Mike

Last night I took a quick look at the wiring harness and on top of the intake in the back near the fire wall there is a bracket that was poking through the insulation of the wiring harness just as you said. I took a piece of rubber roofing and tie wraped it in between the bracket and wiring...

Stumped I finally got around to checking this out. I have the original sensor from Ford and an after market sensor. They both read the same. They start as open and when you heat them up they read continuity, around 15 to 18 ohms. I also checked the voltage on the connector and the...

It is a 2 wire sensor. I have a digital multi meter. Do I just check it for voltage or is there series of tests I will have to do? I will not be able to work on it until Thursday or Friday but as soon as I can I will post the results. Thanks for your quick response, Mike

I have a 1998 Ford Explorer XLT with a 5.0 V8 in it and 123,000 miles. The check engine light is on with a code of PO112, intake air temp sensor 1 circuit low. I replaced the sensor twice and took it to my local garage and they could not figure out what it wrong with it. If anyone can...