IAC Adjustment engine hot or cold?
Junior Member
Joined: May 2006
Posts: 14
Likes: 0
From: Ravenswood, West Virginia
Car: 1991 Camaro RS
Engine: LHO 3.1 V6
Transmission: 700R4
Axle/Gears: 3.23
I'd say it'd be better to adjust it while the engine's at operating temperature. Considering that some motors don't really idle smoothly until they've warmed up.
Member
Joined: Jun 2006
Posts: 408
Likes: 1
From: NJ
Car: 87 IROC
Engine: 5.7 TPI
Transmission: 700-R4
Axle/Gears: BW 7.75" 3.27
The minimum idle air rate should be adjusted with the engine at normal operating temperature. Keep in mind that I'm used to working with a 5.7 TPI, but that is still a pretty standard procedure for any engine.
Senior Member
Joined: Dec 1999
Posts: 770
Likes: 0
From: San Antonio, TX
Car: 86Z/92 RS Camaro
Engine: 357 vortec finished. need tuning
Transmission: Still works
Axle/Gears: need 3.73
Does not matter but if you are going to adjust your TPS/ idle screw then you will need to have it at operating temp.
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