Did a 5.3 Motor swap, won’t rev up past 1500rpm, Idles like shit and when MAF unplugged It dies.
just replace fuel pump too. Any ideas ?
just replace fuel pump too. Any ideas ?
It only has a MAP code, and the signal on the MAP is within spec. What is the limp mode? how would I know it’s in it? thanksWhat codes is it throwing? Sounds like it’s stuck in limp mode.
It only has a MAP code, and the signal on the MAP is within spec. What is the limp mode? how would I know it’s in it? thanks
Jerry's advice is where I would start, first make sure your are getting a good signal form the CPS and CKP and then do a relearn.Sure sounds like a timing issue. I know nothing about the 5.3, could there be a timing issue between the crankshaft and camshaft position sensors like can happen with the 4.0L?