does / could a bad IAT cause misfires ...

[Camaro2k]

my IAT i have found out in very cold (below freezing) weather reads -38. does it make the car run leaner or richer. can this foul up the plugs. I am going to replace the IAT sensor today and hopefully that will solve that issue. I am not sure if i should replace all plugs, wires and coils too while i am at it. i have 85k miles and so far i have only replaced one coil pack, and plugs about 40k ago.

[Wicked 3800 V6]

No. Wouldn't cause any trouble at all.

Probably need to do plugs / wires.

[Camaro2k]

what kinda effect DOES a BAD IAT have on a car if any >????

[saltnvinegar6287]

It would just give the wrong tempature reading. Cold = rich, warm = lean. I drove with mine unplugged for 200 miles and all I got was an SES light. I never took the time to figure out if high resistance(unplugged) means cold or warm, it depends on which way the IAT works.

[chas]

the IAT does advance/retard ignition timing but only by a couple degrees. search in the advanced section for more info on the IAT.

[CamaroRob97]

When tempature goes up, resistance goes down (NTC). Thats the case most of the time.

[ January 12, 2005, 01:10 AM: Message edited by: CamaroRob97 ]

[Need4Camaro]

My IAT is out, I just bought the part to replace it... $10.00 at Autozone... But my car is really stumbling and misfiring but thats the only code that would come up... are you guys SURE that the IAT wouldn't cause a misfire??