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Old May 5, 2014 | 05:12 PM
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been doing some tuning on my car, and not sure when or if its always been this way but it idles around 800. hp tuners show it should be 650. anyway i dont see an iac count so i assume with the electronic throttle it doesnt have an idle air control so what does it use to control idle speed?

things i've change recently was 3 inch downpipe, 3 inch exhaust, and disabled the rear o2.
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Old May 5, 2014 | 06:03 PM
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Originally Posted by blkchevyz
been doing some tuning on my car, and not sure when or if its always been this way but it idles around 800. hp tuners show it should be 650. anyway i dont see an iac count so i assume with the electronic throttle it doesnt have an idle air control so what does it use to control idle speed?

things i've change recently was 3 inch downpipe, 3 inch exhaust, and disabled the rear o2.
post the tune
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Old May 6, 2014 | 08:51 AM
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too big to upload.
it hasnt done it since i posted this. my drive home and to work both had it idleing at 700. so its closer.


i've been messing with the idle timing table trying to smooth the transition to open throttle table. trying to fix the dead spot right off idle, my diags show about 10 degrees of timing even at slight amount of throttle.
what i've noticed is it stays in the idle table till you give it 5% or so throttle
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Old May 6, 2014 | 09:58 AM
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Originally Posted by blkchevyz
too big to upload.
it hasnt done it since i posted this. my drive home and to work both had it idleing at 700. so its closer.


i've been messing with the idle timing table trying to smooth the transition to open throttle table. trying to fix the dead spot right off idle, my diags show about 10 degrees of timing even at slight amount of throttle.
what i've noticed is it stays in the idle table till you give it 5% or so throttle
If youre stock throttle body and intake theres no reason to fudge those tables, you should adress your VE and MAF first get them dialed in. Regardless your idle still seems high mine is 625 and steady always has been. You should also scan and see if youre Tq.mgmt comes into this as a factor.,Did you still have a cat?

as mentioned before though you can always email a copy of the tune to look at. 91parkave@gmail.com

Last edited by 91parkave; May 6, 2014 at 10:10 AM.
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Old May 6, 2014 | 10:17 AM
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i removed the cat but just put a flowmaster cat back on, the car was just too loud and kids didnt like the smell lol
torque management isnt kicking in as far as i can tell. i have it disabled.
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Old May 6, 2014 | 10:39 AM
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Originally Posted by blkchevyz
i removed the cat but just put a flowmaster cat back on, the car was just too loud and kids didnt like the smell lol
torque management isnt kicking in as far as i can tell. i have it disabled.
On the engine side or trans side is tq mgt disabled?
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Old May 6, 2014 | 11:40 AM
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engine side is disabled. the transmission side is just less aggressive.
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Old May 7, 2014 | 07:23 AM
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Sometimes I'll get a high idle, like if i get on it cold with no warmup. Or after flashing a new tune. And after cleaning my tb.

I'm catless on Lewtune stock intake.
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Old May 7, 2014 | 09:09 AM
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Originally Posted by severancej
Sometimes I'll get a high idle, like if i get on it cold with no warmup. Or after flashing a new tune. And after cleaning my tb.

I'm catless on Lewtune stock intake.

i have been tuning alot so maybe its just learning.
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Old May 27, 2014 | 09:30 AM
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i sent you my tune. it still seems like its idles high. averages around 700ish.
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