lq4 idling high

Just got up with a mechanic buddy of mine. We gonna put smoke to it. Maybe i can find it then

I had it tuned for lt headers. Due to budget cuts im running stoxk exhast manifolds. Could this cause my issues

Just put smoke to it. No vacuum leaks. Any other ideas

Maybe there is a crack in the intake?

I put smoke in the entire intake. After 10 min of smoking it out no leaks.

Did you try to clean your IAC?http://www.justanswer.com/uploads/mc...eplace-IAC.pdf
(not sure if it's the same TB you have but you should look at this.)

Do you know what the tune is commanding for idle, and also if the air vol minimums are set for your engine? If its looking for higher air volume it won't go down to the commanded idle.

If you're not leaking on the intake side, I'm forced to assume its doing what the tune is commanding.

The tb i bought had new tps and iac sensors

Quote:

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Originally Posted by Wagonbacker9

Do you know what the tune is commanding for idle, and also if the air vol minimums are set for your engine? If its looking for higher air volume it won't go down to the commanded idle.
If you're not leaking on the intake side, I'm forced to assume its doing what the tune is commanding.

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I thinking the same thing. I dont know what else to try

Quote:

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Originally Posted by cottontop11

The tb i bought had new tps and iac sensors

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Sorry I read too fast...if is not the IAC or a vacuum leak that look bad that the problem is in the tune.Did you hook it to a live data scanner to see how is your STFT?This info will probably help someone with better knowledge than me to help you.Good luck!