86 GN idles high after chip change....

[WH1]

My father in law just changed his injectors from 36#s to 60#s. While waiting on his new chip, he started it with the old 36# turbotweak chip and it idled fine. He borrowed a friend's 60# hotair chip and it idled too high, like 2000 rpms. He just put in his new, correct 60# turbotweak chip and it idles too high just like the one he borrowed. Anybody have any ideas?

 

[turbotroy]

Disconnect ecm (orange wire) and try again. If I remember right, when I went to 60# with TT chip it did want to run high at idle for the 1st 20 mins and after shutting off then starting back up settled down. I think the instructions mentioned this but its been awhile.

 

[psycho6cyl]

X2. Let the ecm relearn it self.. it should smooth out.

 

[WH1]

OK thanks, I'll tell him to try it.