Can a bad IAC or TPS cause misfires/stalling/no starts?
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Joined: Jul 2009
Posts: 2,615
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From: PA
Car: 1996 Camaro, 1985 Camaro
Engine: 3.8, 3.4
Transmission: WC T5, 700r4
Axle/Gears: 3.23(?), 3.42
Can a bad IAC or TPS cause misfires/stalling/no starts?
It's not my camaro I am having the problems with, but still a general knowledge question, I swapped TBs on my other car, the "new" one is simply a 3400 tb, and I put it on my 3100 engine, only difference in the throttle bodies is size, even went so far as to look up the IAC and TPS part #s and they are the same, but for some reason the car runs like **** and misfires(or sounds like it is) if it all on the 3400 TB but runs just fine with the original 3100 TB. I ran out of daylight, but tomorrow I will swap the sensors out even though I shouldn't have to...
Just doesn't make sense to me that a wonky TPS or IAC could cause the issues it has with that tb on it...
Just doesn't make sense to me that a wonky TPS or IAC could cause the issues it has with that tb on it...
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From: Georgetown TX
Car: Base 91 'bird
Engine: 3.1 v6
Transmission: 4L60
Axle/Gears: 9-bolt 3.27 & PBR
Re: Can a bad IAC or TPS cause misfires/stalling/no starts?
Are you swapping the TPS and IAC as well?
Thread Starter
Supreme Member
Joined: Jul 2009
Posts: 2,615
Likes: 5
From: PA
Car: 1996 Camaro, 1985 Camaro
Engine: 3.8, 3.4
Transmission: WC T5, 700r4
Axle/Gears: 3.23(?), 3.42
Re: Can a bad IAC or TPS cause misfires/stalling/no starts?
I am going to, though I shouldn't need to unless they are bad, both TBs use the exact same sensors. And its weird the issues it causes running the 3400 TB, but we'll see what happens with the sensors swapped...
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mdtoren
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Aug 16, 2015 05:45 PM
