86 GN idles high after chip change....

WH1

5150
Joined
Oct 19, 2001
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?
 
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.
 
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