Idle rpm help!
Supreme Member
Joined: Apr 2010
Posts: 4,337
Likes: 29
From: Aurora, OR
Car: 87 IROC Z28
Engine: 355 cid TPI
Transmission: Custom Built 700R4 w/3,500 stall
Axle/Gears: QP fab 9" 3.70 Truetrac
Re: Idle rpm help!
Idle is computer controlled. It should be at 650 with all accessories off. If it is not correct, you will need to perform idle air control reset procedure. Warm up engine, turn off ignition, disconnect IAC, restart engine, adjust idle to 450 by turning base idle screw(may need to remove plug covering screw), reconnect IAC. If engine will not idle at 450, figure out why.
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Junior Member
Joined: Jul 2010
Posts: 54
Likes: 0
Car: 1992 Camaro z28
Engine: 5.0 TPI
Transmission: 5 Speed Manual t5
Re: Idle rpm help!
Idle is computer controlled. It should be at 650 with all accessories off. If it is not correct, you will need to perform idle air control reset procedure. Warm up engine, turn off ignition, disconnect IAC, restart engine, adjust idle to 450 by turning base idle screw(may need to remove plug covering screw), reconnect IAC. If engine will not idle at 450, figure out why.
!~! ima go do that now 
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