Quote:
Originally Posted by 328FTW
The A/T ecu can run the manual you just have to jumper it so it thinks it's in park so it starts, the computer is kinda "dumb" that way it doesn't really care if the box is there or not.
The supercharger doesn't need to be turned off, it won't give better mileage or anything it will just get confused and wonder where the boost went, it may run without it but there is really no point unless you have a specific reason.
Not sure about the SC light, wouldn't think so never changed clusters on mine but it doesn't really matter it isn't that hard to run one.
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on my megasquirted 4agze I see a difference of 14mpg and 45mpg with the s/c on vs. off (I have it on a separate relay and switch).
if you're not using a stock ecu then there's a HUGE advantage to being able to turn it off.
as for a high idle you can always adjust it down. the computer itself (IIRC) doesn't actually care if it's "in park" or not.... I believe there's just something in line of the ignition that won't allow it to start unless it's jumpered (same thing as a clutch pedal -- just has a simple switch that allows the starter to turn... don't believe it's actually computer controlled).
older AT ecu's aren't that smart -- many times the pinouts are the same and there are only minor differences, which you won't be able to tell.