I got an idea, bring it to a mechanic that actually cares. Too often these "mechanics" just don't give a rats ass about something as old as a thirdgen. They'd rather make money
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First off, setting the base timing requires that you know that the balancer hasn't slipped. This requires pulling the #1 spark plug and using a small screw driver or coat hanger find TDC. Verify that the balancer mark and the indicator line up, if not, mark the new position with paint. Now unplug the tan bypass wire, start the car, set the base timing to factory, turn the engine off, plug tan wire back in and start her up. Verify with a timing light that you're getting computer controlled spark control (it'll move around with just moving the throttle slowely.) If it doesn't change and at like 2500rpm it spikes up then your ecm doesn't even have control over the SA and you might have a bad wire or ESC module.
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, Jon
Owner of a Red Sled.
If it\'s EFI I can tune it. Specialize in 82-95 GM (yes Lt1\'s)
\"If you can leave black marks on a straight from the time you exit a corner till the time you brake for the next turn.......Then, you have enough horsepower\" - Mark Donohue