Post subject: VEMS crazy rich when shifting. HALP!
Posted: Tue Apr 18, 2017 7:21 pm
mach 2 with my hair on fire
Joined: Sat Feb 12, 2011 2:52 pm Posts: 1606
vems forum is no help. When I lift off to shift, lambda goes to .7 and I just failed emissions because of it. Is there a setting or something that controls that? My map is from another member and tuned professionally, so what the hell man? It's 10-20 Kp (I live at 7000 feet) and 2000-4000 rpm with perfect lambda during cruise near those points. Just lifting to shifts causes mad rich condition. Is this timing or some hidden setting or what? I'm going batshit crasy with this one.
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Post subject: Re: VEMS crazy rich when shifting. HALP!
Posted: Wed Apr 19, 2017 6:48 pm
I sprinkle rubber on my Cherios
Joined: Tue Oct 14, 2014 4:05 pm Posts: 286
Are you talking about instances like this? I think this is a normal occurrence (i have it too). As the throttle shuts there is a lack of air going through the intake making it rich for a moment. if you look at the duration its only for 3/10ths of a second. i think thats just one of those things that comes with a speed density setup.
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