Okay here is my problem.......i have been collecting parts for my lq4 swap for about 6months. Well changed my red/blue DBW harness to DBC. Went to attach it to my pcm ($15 craigslist deal) and the red does not fit. Pcm is green/blue.
If i trim the tabs it will plug in but do i need to repin the harness to the green/blue pcm or can it be fixed with a tune? Trying to start this engine on the stand Asap!!
Someone pls help me......i just wanna roast some tires in the old 49

 

They're mostly the same, but you may have to repin a few. You would have to get both pin outs and compare them. Your biggest concern is whether or not your green/blue PCM has IAC drivers in it to work with a DBC throttle body, as not all of them do.

 

According to the info on lt1swap.com the pcm "should" work but i will open it right now to find out. Thanks for the quick response!!