Running Absurdly rich under boost!
ok so I just started working on my galant yesterday after a 2 year break and i'm still having issues with running rich. I'm currently running e85 and 1000cc injectors on a stock fpr. For fuel management I am using the evo ecu and a maft. No matter how I scale the injectors I keep on running rich in the 9.8 ish area. What I have observed is that I get a compete fuel cut at 4500 rpm, and it sputters up to that. Though I also might add that under load (going up a hill) the car seems to do much better, still rich though. I remeber being told to install a knock sensor because my evo ecu needs one so I'm gonna do that tomorrow, and see if that helps. I also tried an experiment where I removed the wastgate spring completely and found out the car would only rev up to 2500 rpm which tells me that there is way too much fuel going into the engine. My theory is that when I increase the amount of boost it seems to make my car run a tad bit better. Where i'm confused is why dosen't anything happen when I change the settings on the ecu, at all. Is it really all because of the knock sensor, does everyone else running the evo ecu install a knock sensor on their car. Thank you for listening to all my rambling but I wanted to make it as detailed as possible. Oh and one more question, do you think if I installed and aeromotive fpr it would help at all, to my knowledge that would increase the fuel pressure which would not make my situation any better.