doing something wrong with writing chips
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Joined: May 2006
Posts: 498
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From: belgium
Car: camaro
Engine: 3.1 :(
Transmission: 700r4
Axle/Gears: stock
Re: doing something wrong with writing chips
High vacuum would be the 20-30KPA side of the table, not the 80-100KPA side. 80-100 KPA is were you are under heavy load and wide open throttle.
The backfire while decelerating maybe the fact the ecm is no longer entering deceleration fuel cutoff correctly due to the reduced vacuum of the longer duration camshaft.
The backfire while decelerating maybe the fact the ecm is no longer entering deceleration fuel cutoff correctly due to the reduced vacuum of the longer duration camshaft.
now this part is REALLY good to know.
so basicly under high vacuum, you want more timing due to less load on the engine...
and with the 2d VE table you probably want to mess wih the 2d table if your fuel is hgih or low all over that RPM range.
and mess with the 3d tables to finetune when on a specific load/rpm you need more or less fuel.
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Gunner242
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Dec 25, 2015 04:49 PM