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quick IAC question

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Old 07-15-2004, 09:27 AM
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Car: 1989 Trans Am
Engine: 350 TPI
Transmission: 700R-4
quick IAC question

when the IAC is at 160 steps, does it mean it is fully extended or fully retracted?
Old 07-15-2004, 09:29 AM
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Car: 91 GTA, 91 Formula, 89 TTA
Engine: all 225+ RWHP
Transmission: all OD
Axle/Gears: Always the good ones
fully extended the greater the counts the farther open the air bleed is and the less counts the less adjusting the iac is doing..

Search on IAC , there is alot of good info here, just be prepared for some work to tame it down if u have a rowdy combo :-)

later
Jeremy
Old 07-15-2004, 09:55 AM
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Car: 1989 Trans Am
Engine: 350 TPI
Transmission: 700R-4
been at battle with trying to get the idle as smooth as possible lately and being the dumbass that i am, thought that 160 steps was fully closed. now that i read my scantool book and your reply have relized i was adjusting in the wrong direction.
thanks. should be smooth as glass in a few minutes.
Old 07-15-2004, 10:50 AM
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any reason the iac in my car reads 60 steps at cruise speeds(70mph). CL and 185 deg on temp. i would think at 0 steps above conditions.

at idle CL reads zero and appears steady at zero(AC off).

is iac position affected by tps or map?
Old 07-15-2004, 11:05 AM
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Car: check
Engine: check
Transmission: check
Originally posted by Ronny
any reason the iac in my car reads 60 steps at cruise speeds(70mph). CL and 185 deg on temp. i would think at 0 steps above conditions.

at idle CL reads zero and appears steady at zero(AC off).

is iac position affected by tps or map?
IAC is tied to TPS%. Search for 'throttle AND follower'.

RBob.
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