So this car has a Boss intake manifold on it, and during Wot, it will not keep Maf fueling changes. During Wot, it is lean, and after adding the Commanded Lambda error, multiple times, it seems to just hit the same lambda. I tried to follow some threads on changes in the mapped points when using a Boss 302 manifiold, and maybe that is why I'm having problems? Maybe I have the Mapped points incorrect? I've added the lamba error a couple times already with not change in delivered fuel.
Last edited by Flipper7; 3 Weeks Ago at 06:41 PM.
This file you shared is not stock MAF values
Simple... Successful... Intelligent...
So I changed the topic after attempting to change Mapped points for the Boss 302 intake, and the fueling will not follow commanded lambda after multiple Maf changes
Why are you running only mapped points that are used for IMRC closed positions? You have a Boss manifold, right? That means you have no IMRCs right? Should be the opposite. Also why are you commanding .9 lambda. Thats pretty lean considering stock is .85. Your commanded is rich because your fuel trims are off up top. Your actual lambda was .88-.95 on that log. Be careful. Don't blow it up now.
This is how they roll in GM world...Originally Posted by Pistol_91
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Could you please elaborate on the changes in the mapped points when not using the Imrc's?
IMRCs are either open or closed. When they're closed mapped points 0-13 are used. When they're open mapped points 14-26 are used. If you have an aftermarket manifold, hence, no IMRCs. Your tune should only be commanding IMRC open positions. 14-26. This is the very basics of Fords logic. Read up on it. It's a lot but once it clicks its very simple.
Very true.. Lol
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