03 Accord V6
G-Emanage Ultimate

Just did a 3.5L swap and everytime the throttle goes past 80% the w/b a/f goes completely rich 10.0 and stays there. Doesn't matter which RPM either. Tried datalogging to correct and the problem still persist. ALL part throttle less 80% is fine and A/F stays in 12.5-13.5. whenever I go full throttle you can feel the car start to slow instead of accelerate.

Also I only have two codes in my ecu
02 heater wire
and 02 sensor

Any ideas what the problem could be? bad sensor? WTF?

 

13 looks no ideas??? cmon, I know there are some people smarter than me on here.

 

mine did almost wat yours did, mine would stay completely rich at idle and driving, i tried EVERYTHING i could think of, till i said EFF it, and got it retuned, so far so good, mine would stay pegged at 10.0, the tuner just disabled my o2, seems like its working, been ok every since

 

Try replacing the o2 sensor. Or check your wiring. I don't know anything about your emanage, but if its trying to read your o2 to adjust the fuel, and it can't read it, it will likely go safe, ie. rich.