On a LS type engine it is pretty accepted to shoot for IAC counts in the 40-60 range fully warmed up in gear.
On a LS type engine it is pretty accepted to shoot for IAC counts in the 40-60 range fully warmed up in gear.
Thanks for that, the one piece of info I found indicated around 40-50.
I wasn't sure if the IAC counts made any difference running on an OBDI 7427 PCM vs the later OBDII PCM that the throttle body would have been designed for.
That I don't know. In the LS gen 3 pcms there is an IAC Steps vs Effective area table is calibrated for the size of the IAC passage way. I would say if it is controlling your idle with those steps it is probably working ok. With that combination of parts that was never used together OEM it is going to have to just take some trial and error to see what works best.
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