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throttle position switch functionality 200 1993

posted by  Ryan_R on  Wed Dec 9 04:58 CST 2009
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last visit: Tue Sep 24 13:46 CST 2013
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Idle is done with the IAC: more air = higher idle. The ECU maintains the proper mixture for idle. Idle isn't controlled by the mixture.

Mixture is always calculated by the AMM... and slightly "tweaked" by the O2 sensor. LH 2.4 is "adaptive", meaning that the ECU figures out slight discrepancies between the two, and accounts for it. Doesn't matter if the amount of air being sucked into the engine is regulated by the IAC (at idle), or by your foot (off idle). Everything does the same thing regardless.

-Ryan
--

Athens, Ohio
1987 245 DL 314k, Dog-mobile
1990 245 DL 134k M47, E-codes, GT Sway Bars, GT Braces, Draco Wheels
1991 745 GL 300k, Regina, 23/21mm Turbo Sway Bars





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New throttle position switch functionality [200][1993]
posted by  ronald subscriber  on Wed Dec 9 01:43 CST 2009 >


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