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Old 06-24-2024   #6
scorp508
 
Join Date: Jan 2024
Location: Boston, MA
Posts: 196
Default Re: Minimum Air Idle Adjustment

Quote:
Originally Posted by XfireZ51 View Post
U want enough IAC steps so ECM has room to ?catch? idle drop, but not too many steps to where most of idle air is coming thru IAC opening. I typically shoot for 10-15 steps. One other step I do is to modify the IAC Min Air table in the calibration to match what the actual IAC counts are in operation.

On a cold start when the desired idle is still 1250 it looks like IAC is at 110.

Once warm and desired idle of 850 the steps are around 30-40.
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1987: Z51 Coupe, Z51, 4+3, Yellow / Graphite, 310 RWHP 350ck L98
1994: ZR-1 #150, Admiral Blue / Black, 445 RWHP 350ci LT5
2015: Z06 Coupe, Z07, M7, Arctic White / Red, Stock LT4
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