Originally Posted by
gregs78cam
At an idle in neutral my Dual TBI the IAC stays on 0 steps. The throttle blades are letting to much air through even while closed ALL the way. It idles where I want so it's not bad. In gear it has some steps and maintains idle fine. I closed off the other IAC in the same way.
Yes IAC and O2 sensor have different threads, O2 is 18mm, IAC is 20mm.
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