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lean afr

Posted: Wed May 10, 2017 11:56 am
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.

Re: lean afr

Posted: Wed May 10, 2017 7:52 pm
by kholman
First thing to do is pick one and then work to solve that one.

Re: lean afr

Posted: Thu May 11, 2017 7:12 am
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?