MAP and TPS LOAD based EFI

[Nicholas Parker]

Hi,
       How are TPS & MAP combined to form the 'LOAD" estimating variable in
some EFI systems?   Does this techinque only apply to cars where the
camshafts have overlap resulting in low vacuum (as in closer to atmospheric
pressure than absolute vacuum!) at low engine speeds?  What is a good way of
implementing this kind of control?  How do you implement this when you have
a 3d RPM vs MAP table for you basic fuel 'calculation' ? Why would you want
as well I guess!?

Cheers, Nick Parker.

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