lean afr

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gto66
MegaSquirt Newbie
Posts: 9
Joined: Mon Jan 09, 2017 8:51 pm

lean afr

Post by gto66 »

I had a ms/extra tune in my MS2 while trying to tune with auto tune I would drive about 2 mins and my afr would go of the scale lean when I tried to give it any throttle. I would turn of the vehicle and restart and it would run for a while and repeat same problem. I then loaded B&G 2.92 on the MS2 tried to tune and the same thing happened. I am at a loss of what to do. Does anybody have any suggestions? I have attached a msq for B&G and also MS/extra. I only have a log from the MS/extra.
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kholman
Site Admin
Posts: 127
Joined: Sun Dec 24, 2006 5:56 pm

Re: lean afr

Post by kholman »

First thing to do is pick one and then work to solve that one.
trakkies
Super Squirter
Posts: 1162
Joined: Tue Dec 30, 2008 3:06 am
Location: SW London, UK

Re: lean afr

Post by trakkies »

Are you attempting VEAL at very low revs? Best to set it so it only works well above idle - say 1500 rpm onwards or so. And have you set the lag factor for your wideband sensor position?
Dave P, London UK.
Rover V-8
MSII V3
EDIS
Tech Edge Wideband
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