Quote:
Originally Posted by The Radium King
i'll take a stab. there is an iat (intake air temperature) sensor that plugs in to the intake manifold. this is where the computer gets it's air temp info from. if it is unplugged, shorted to ground, covered in goo, or just failed, it might be sending a signal so far out of whack that the computer is just defaulting to a minimum value (-40). the iat sensor is #17 on the diagram below:
Intake Distributor
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Hate to have to correct you, but that is the engine compartment temperature sensor; the intake air temp signal comes from the MAF.
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