Lean spike at shifts
#23
Thread Starter
Joined: Nov 2004
Posts: 27,563
Likes: 3
From: Maryland
Originally Posted by dewmanshu
quiet as in it still goes lean, I think the pump took a poop.

WTF New inline, new wires to inline (old were burnt), pressure is at 65#'s. I have the VE table very very fat in these regions. I understand Dyn Cyl is out of whack and it's too rich. I wired in some narrowband o2's (old ones were dead) so I could actually see in comparison the lean spot and sure enough it's there. WTF
(Still SD in this run)
#24
thats weird as hell.. is there something else that could control fuel at WOT like pe or boost ve? I have no clue when it comes to boosted applications but that just doesnt make sense..
#26
Thread Starter
Joined: Nov 2004
Posts: 27,563
Likes: 3
From: Maryland
Originally Posted by Holty
all i know is that you hit 88mph in that scan so i know your flux capacitor was fluxin'
I pulled over on the highway and try to baby it back out withoout doing a burnt but not letting it shift, you can see in the beginning the tires spinning. I was sideways coming onto the highway.Frame 10269 if the attachment works.
#27
Thread Starter
Joined: Nov 2004
Posts: 27,563
Likes: 3
From: Maryland
Originally Posted by ridnlow
thats weird as hell.. is there something else that could control fuel at WOT like pe or boost ve? I have no clue when it comes to boosted applications but that just doesnt make sense..
#29
Thread Starter
Joined: Nov 2004
Posts: 27,563
Likes: 3
From: Maryland
If a cutoff of some sort was hit, wouldn't I see the injPW drop off? or would the pcm(scan) still show something? I just noticed in my tune that badVSS fuel cut off is 6000RPM and resume is 5800. But it is showing the injPW increasing through the shift.




