Originally Posted by
JeepsAndGuns
If it has you stumped, then it must be a good one....lol
Like said before, it started when I went to mpfi, it behaved more normally back with the tbi. Other than the screwy afr, it runs way better with the mpfi. Thats whats making me want to build a adapter harness and try out a factory mpfi ecm (7730) if we cant get this figured out. I'm still curious to know if the mpfi has anything to do with it. Do we know anyone else on here or other forums that has also done the 7427 mpfi swap/hack?