lsXtreme. lq4+4l60e
i have a question, i am having a hard time with the idle. it wants to idle around 1500-2000 rpms. i have 2 iacs. i pulled the plunger out alittle on one and installed it unhooked and it idles at 800. while its idleing i hooked other iac up and i could watch the plunger doing its thing trying to controll air flow(plunger moving in and out randomly). i am wondering if the descreened maf could be affecting this or is it the P1637 code i disabled cause it holds and charges fine. i am using a new(advance auto) Fbody alt, i got it for a 2000. is there a difference in the harness i am over looking. the silverado harness has one wire going to the alt.
all comments and feedback welcome. thanks for looking
I had a similar plan to drop in an lQ4/4l60E into my regular cab Colorado Xtreme but I have to sell it. Would have been great though.


