sk8freak8989
10+ Year Contributor
- 46
- 0
- Jan 28, 2010
-
sterling,
Massachusetts
I just finished installing my holset hx40 setup and I started to do some tuning last night. I am haveing a wierd rich dip at about 3000-3200rpm. If I start the pull at 2500 the car will switch to open loop and have an AFR around the 12's. Right when it reaches around 3000 my wide band will drop to about 9.3 and the car will bog. At around 3200-3400 the car just snaps out of it and goes to normal wot afr. With the holset swap i changed to FIC 1250 injectors. Is this just a thing with big injectors that is unavoidable? I have already tried pulling fuel out, but so far the best i can do is get it to only dip to about a 10 AFR. Any info would help.
Thanks
Thanks