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Originally Posted by aerial_22
I am having problems with my air intake temperature sensor on my 1999 Grand Am SE 3.4L. I have had it replaced, but my check engine light remains on. I am concerned when the sensor went bad that it shorted out the contact for this sensor on the car's main computer. Anyone had a similar experience?
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Also, sometimes the obvious is overlooked. Make sure the little cable plugging into the intake plenum is seated in properly. Check the cable as far into the loom as you can. Look the connector over carefully for bent pins or distorted openings. If you want to give it a try, plug a 6k ohm resistor into the connector (on the cable) to verify that your pcm is seeing a good value. 6k should tell your computer that the ambient air temperature is about 65 - 70 degrees fahrenheit. I am unfamiliar with the 3.4L engine so you would be doing the resistor trick at risk.
Regards