been learning and tuning my 82 z with 355, eng and 7747 ecm.----have bpw with stock injectors set too 100[20 psi fuel]---ais motors set. But veh now has no high idle when cold in mourning, untill the temp starts to come off 100 degrees.and then its ok,[restart and has high idle and smooth]----------is there a adj i dont know about in tuner pro ?---choke ?????

 

No one here have a suggestion on the no high idle when cold ???????????????

 

It may be that the cold idle RPM settings are too low. Up in the sticky's there is a tuning guide book. In the '747/'8746. . . section is a post that describes the '747 IAC control. It has a lot of info in it.

RBob.

 

The fact that your cold idle is ok when above 100 degrees says that it works ok in closed loop (closes at 104). Possibly the fuel settings are off and are corrected when the loop closes. If the fueling is way off, your IAC may be full open but a mixture error may be keeping the idle low. I would check to see where the IAC is when it's cold and idling. That will tell you a lot.