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VEMS crazy rich when shifting. HALP!

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 Post subject: VEMS crazy rich when shifting. HALP!
PostPosted: Tue Apr 18, 2017 7:21 pm 
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mach 2 with my hair on fire

Joined: Sat Feb 12, 2011 2:52 pm
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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!
PostPosted: Tue Apr 18, 2017 10:04 pm 
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I sprinkle rubber on my Cherios
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can you post a log so we can see your setup? would be easier to diagnose rather than going back and forth with try this or that.


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 Post subject: Re: VEMS crazy rich when shifting. HALP!
PostPosted: Wed Apr 19, 2017 12:23 pm 
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mach 2 with my hair on fire

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http://www.vems.hu/files/smurfinator/v3 ... 42.vemslog

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 Post subject: Re: VEMS crazy rich when shifting. HALP!
PostPosted: Wed Apr 19, 2017 6:48 pm 
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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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