Quote:
Originally posted by jimberg
That's hardly enough to freak out an SD computer.
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My friend has an '88 Mustang (Speed Density), mines an '89 (Mass Air).
We both did the same exact mods to our cars at the same time (in the same garage), underdrive pullies, long tube headers, eliminate cats and smog pump.
Mine idled like a dream, my friends '88 displayed the same exact symptoms that Ernie mentioned in his first post!
I don't recall how he resolved the issue, it was a few years ago when this happened!
SD cars are more touchy than people think!
Phil