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Old 06-02-2003, 12:29 AM   #5
Philossifer
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Join Date: Apr 2003
Posts: 69
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Ernie,
86's are "Speed Density" cars.....

Speed Density does not use an air meter at the intake to calculate the fuel/air mixture. Instead, it uses pre-set tables programmed into the ECU to adjust the mixture...

It can't compensate for the mods you added! You should convert it to a "Mass Air" system. Then it will be able to correct for the mods you've done (and more!) A mass air meter measures the actual amount of air entering the intake and compensates accordingly! Speed Density can only compensate to a certain degree; you've passed that point!
Phil
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