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#21 | |||
![]() Join Date: Jan 2024
Location: Boston, MA
Posts: 171
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#22 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,697
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The way to set the IAC is after u have it idling just below ur desired idle, say ALMOST stalling, IOW once u have set ur idle just below where u actually want it, connect everything, restart w diag tool and now see hiw many IAC steps u have for ur desired idle. I shoot for something like 10-15steps. If its above that, then open the TB, below that close TB. The point is u want to achieve as little ECM intervention necessary for the motor to operate. IAC reaction is also something that can be modified slowing it or speeding it up.
I like to set my IAC when fans are running due to the extra load so as to give me an extra margin.
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX Last edited by XfireZ51; 07-30-2024 at 04:56 PM. |
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#23 |
![]() Join Date: Jan 2024
Location: Boston, MA
Posts: 171
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I gave it another try yesterday while prepping the car for Carlisle and was able to get the IAC steps to 16 at warm idle with fans on.
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1987: Z51 Coupe, Z51, 4+3, Yellow / Graphite 1994: ZR-1 #150, Admiral Blue / Black 2015: Z06 Coupe, Z07, M7, Arctic White / Red |
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