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| ** Tried another IAC valve tests seem to show that similar reaction is made. At this point I am unsure what is causing my running issue. You are correct in thinking that forcing the IAC to close position helps (keeps MAP stable), but the issue only truly goes away for me if I cheat the IAC force close to NEVER go to 0 DUTY which the ECU always seems to do regardless of the settings to power off or not. I have to cheat by putting the power off time to 255s, that way it gives enough time for it to never close. So far that has helped me avoid most of my issues with the IAC situation. I still do not understand how I can have this issue but friends car with exact same setup (same IAC, same motor, almost identical plumbing of IAC, same IAC connection to ECU, etc.) does not have this issue at all. |