Ok guys, need some ideas here.
Got the 5.3 (2005 w/4l60e) running and driving but its giving me P0171 and P0174 codes; Both banks lean. The tourqe app im using also picked up cylinder 1, 7, & 8 misfires ranging from 14-24 times. It will run great, but if I get on it hard or floor it and let off, it pops and shoots me some flames out the exhaust (both very considerably!) then throws the codes
Ive changed knock sensors and that code is gone
Swapped in good MAF sensor and that went away (new one of those bought tomorrow)
Done a TB gasket
Checked Fuel pressure at rail. Holding at 60+ psi for full throattle range ( only parked though, not able to check while driving)
Tried to spray for any leaks and couldn't find any vacuum leaks
At this point im down to swapping around those 3 coils, will swap the wires around too if that doesn't give me anything, or then swapping the injectors around.
Run a compression test next if that doesn't work.
Im about 80% certain the lean condition is coming from those missfires
Has anyone had and fixed this problem with something other then what I have/will try? Im kinda out of ideas if the coils/injectors/compression doesn't turn up anything.
Unfortuantly ls1tech crashes on my browser so im SOL on that wealth of knowledge. Cant read shit when its freezing and reloading every 3 minutes.