WOT fuel help please
Thread Starter
Joined: Mar 2003
Posts: 8,319
Likes: 1
From: North Carolina
WOT fuel help please ok im waiting to hear back from my tuner at predator but he mess with the fuel trims and it seems at WOT that the o2's are reading low 800's about 830. before it was about 850 i dont think he adjusted this but if he didnt with him making the fuel trims go from + to - make the change in WOT fuel? also if i adjusted the PE up some would that be doing the same thing he would be doing to bring the WOT numerbs up? if so how much should i go up to bring 825 to 900 and what about 850 to 900?
Re: WOT fuel help please You cannot really trust the O2s for WOT tuning. I had my AFR @ 13.0 and my O2s read 830 - 850 with stock exhaust manifolds. I installed headers afterwards (LTFT went up only +2) but my O2s are now 930-950.
You need to use a wideband to really tune it, but you have probably heard this before.
You need to use a wideband to really tune it, but you have probably heard this before.
TECH Enthusiast
Joined: Jan 2003
Posts: 582
Likes: 0
From: Birmingham, AL
Re: WOT fuel help please Not sure about the accuracy question, but if you can monitor, some people will tune lean until they start getting KR at WOT, then tune rich a little. Not really the safest way but... 
Are you getting any KR at WOT?
Are you getting any KR at WOT? 
