Follow-Ups to Answer from Expert Rob Quicke

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Perry wrote at 2008-01-23 20:35:44
This is a problem associated with your air cleaner. Attached to the air cleaner assembly is a 2 wire sensor which monitors the "Intake Air Temperature" or IAT. Check for broken wires. The sensor should read approx 1,500 ohms at the sensor connector during +72 degrees F ambient.

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moto wrote at 2008-12-04 23:45:22
I have a 1997 Nissan 4X4 pickup and the check engine light has been on for four or more years.  In Pa. this is not a problem but in Jersey it is.  I took it to a mechanic and was told both oxygen sensors and the IAT sensor is bad.  The cost to replace is $756.00.  I was told that there are no after market sensors available, only OEM but when I went to NAPA and Pep Boys, they had them in stock at less than half the price from the garage.

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