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Re: big afr swings
Posted: Mon Jul 30, 2012 9:36 am
by fordfanboi
fordfanboi wrote:I have this exact issue. It's always when cruising at 50-40 MAP and it will oscillate my AFR 2 pts. MapDOT is oscillating wildly. My AE is TPS only. What the heck is causing my MapDOT to go crazy. The MAP in the log looks fine - looks like anywhere else in the log - just the MapDOT is wigging out.
Any idea how was this solved in this thread?
Thanks!
Note: Swapping injectors isn't an option for me. I'd like to determine why this is happening and reconfigure the MS II to solve.
Re: big afr swings
Posted: Wed Sep 05, 2012 2:07 pm
by phongshader
sorry i missed this reply, In my situation the combination of going to a progressive throttle opening on a 4 barrel and smaller injectors cured it for me, I see you can't change injectors but maybe you can modify your throttle linkage...anyhow that's what worked for me.
Re: big afr swings
Posted: Mon Sep 17, 2012 6:47 am
by LT401Vette
Under the Tools menu have you calibrated your AFR to match your LC1?
It looks almost like a narrowband pattern and while you are quickly swinging from lean to rich at steady state, it seems you are not close to reading the full range of the LC1 output.