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    High idle when slow driving

    I was wondering if anyone has done the test light test on the IAC and how does it work I was wanting to check mine out but I don't know what I am looking for I saw it somewere but it didn't give much info.I also am looking for info on how the AIR system is suppose to work I think mine is not...
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    High idle when slow driving

    I have still been working on my idle problem and found something today it has the wrong PROM in the computer.Would anyone know where I can get one I have the GM part # to get crossed if needed.Thanks,Joey.
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    High idle when slow driving

    I live in Virginia and it has to have a cat.I have been checking out everything and this idling problem is how I found that my cat. was stopped up.What Magnaflow should I be looking for I am looking for the best flow I can get and I am planning on using a Flowmaster 50 series muffler I just want...
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    High idle when slow driving

    I am going to be putting a new exhaust on my truck also and was wondering if anyone would give me an idea on the best catalytic converter to use on my truck I would like to have the most free flowing exhaust as I can.Thanks.
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    High idle when slow driving

    I think I might have found the problem yesterday the IAC is hanging up in the tbi its not seating back closed.I jumpered the dia. connector out and it took a good while for it to seat closed its like its going in at an angle and dragging on one side of the tbi its not centered in the tbi or the...
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    High idle when slow driving

    I don't have one but I think I can get one if you can tell what to get and what exactly what I need to do and what to look for.I was looking for a complete tbi and I found one from Rockauto so I can get it if it needs it.
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    High idle when slow driving

    I tried unplugging the IAC and it idled so fast I had to hook it back up.I set the base line idle not to long ago somewhere around 600-625 and its idling right at 750-800 its not even coming back to idle.The idle is not steady either its jumping around but thats about where it stays the most.Do...
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    High idle when slow driving

    Thanks for the info I never thought of just unplugging the IAC.I can't get it to do it just sitting and idling.I can rev the engine just sitting and it don't come back to idle right then it takes some time for it to come back down.I thought the new IAC went bad and the parts place I got it from...
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    High idle when slow driving

    I have looked at the tbi and throttle cable and it all seems good.I can jumper the dia. connector out and seat the IAC and unplug it and rev the engine and it comes back to idle as soon as let off the throttle.
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    High idle when slow driving

    I have a 1987 Chevy 1 ton with a tbi 454 and when I am trying to drive at slow speeds or like around in a parking lot the idle takes some time to slow after you push the clutch in it won't return to idle fast enough.I have replaced the intake gaskets and tbi gaskets and the IAC and TPS.I havn't...

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