Since installing a wideband in my car I have noticed that my car runs really rich in the 1300-2000hz MAFRaw range no matter how much fuel I take away from the appropiate rpm range. It always stays at 10.0 in that range. The a/f ratio becomes more predictable after that range. What would cause this and how can I fix it? I would like to run ~11.0 in that range. I've attached a log, Thank You.
Lower that pre-spool timing curve a bit. It doesn't have to be that aggressive. If you notice, the wideband goes pig rich when that timing curve drops off. Keep pulling fuel to try and level it out. You still have plenty of room to work.
Stubborn Rich Midrange Condition!!!
