High idle with 0 IAC Counts (solved)
Thread Starter
Launching!
Joined: Mar 2012
Posts: 299
Likes: 21
From: Phoenix, AZ
High idle with 0 IAC Counts (solved) I wanted to post this up in case anyone else had this issue.
I swapped a holley 4150 style intake and throttle body on my 6.0 and had problems with a high idle and iac counts going to zero. I suspected a vacuum leak but that was not the case.
A guy on the HP Tuners facebook page solved it for me.
Many of the 4150 throttle bodys use a Chrysler IACV which has a different pinout than a GM. All I had to do was swap my A and C pin and all my problems went away.
This drove me crazy for a LONG time.
I hope this helps someone in the future.
I swapped a holley 4150 style intake and throttle body on my 6.0 and had problems with a high idle and iac counts going to zero. I suspected a vacuum leak but that was not the case.
A guy on the HP Tuners facebook page solved it for me.
Many of the 4150 throttle bodys use a Chrysler IACV which has a different pinout than a GM. All I had to do was swap my A and C pin and all my problems went away.
This drove me crazy for a LONG time.
I hope this helps someone in the future.
