Idle - TPS Voltage Threshold
I am reading conflicting information regarding the maximum TPS voltage required to remain within the "Idle" parameters and would really appreciate some clarity. Most state the threshold exists at .6 V, but I am not sure how to verify this... maybe log the Idle spark tables and see if it populates itself...? Mabe log STIT and LTIT?
Currently my IAC counts are maxed out on a cold start with my TPS voltage set at 0.57 V at idle with a 65* F ambient conditions, and the IAC counts stay that way for a long time while warming-up the engine; Desired RPMs at the ECT/ambient temperature is 950 RPMs, and the RPMs gradually step down to 800 RPMs at operating temperature. Once the engine is at operating temperature (~180-190 *F), the IAC counts still only drop down to the high 100s. If I turn the throttle adjustment screw just a hair more, the voltage jumps to .59 V, but there isn't enough of an airflow gain with such a small adjustment to justify being that close to the threshold value IMO. I recall being able to really dial this in back when I had a HCI 5.7L setup, but I am running a 402ci motor now. FWIW, I am running the same intake and TB as before, and both setups had a catchcan.
I am just trying my best to keep myself from having to alter the TB blade in order to receive more airflow so any advice would be greatly appreciated. I can post a log and the tune, but I am not sure this will necessarily help answer my basic question.
Thanks!
PS - Yes, I am followng the TPS reset procedure after every adjustment.