Need some suggestions on getting a little better idle control. I am 90% there. GM 4.3, 280Hr CAM, 10:1 compression ect.. Anyhoo I got a good stable Idle at 900 rpm (+- 50ish rpm due to the cam) with about 45kpa. Hell would breaks lose when the cooling fan comes on that was solved with Idle advance/rpm setting preventing dropping to under 600rpm.
The problem now is I would like to slow down the response time of closed loop IAC. I have played with the PID settings to the point of pulling my hair out.
The fan comes on now and the IAC will oscillate/hunt for about 3 then settle on a stable idle..
IAC setting suggestions
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Re: IAC setting suggestions
Can you post a data log of the problem also.
David
David
1976 Datsun 280Z L28ET Garrett GT35R T3-T04E stage3 50 trim 63 A/R housing custom grind cam 2000-6000 rpm 440cc injectors intercooled 18 lbs. boost
3" exhaust turbo back LC-1 o2 sensor Hallman manual boost controller EDIS 6 ignition batch fire 60mm throttle body 5 spd T5 borg warner 3.54 lsd
3" exhaust turbo back LC-1 o2 sensor Hallman manual boost controller EDIS 6 ignition batch fire 60mm throttle body 5 spd T5 borg warner 3.54 lsd
Re: IAC setting suggestions
Yes I will post a log tomorrow if I is not to late when I get home. (I do respect my neighbors)