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You don,t disconnect the computer on any car to adjust base timing. That,s what runs the car, you disconnect spark advance and that varies according to make and model. Take note if your car does not have a distributer and it,s a coil pack you can not adjust base timing that is done by the computer only. If your car has a distributer I would contact a dealer or get a Chiltons manual on how to set base timing. I could not tell you how to disconnect the advance on your car not formilar with your distributer

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โˆ™ 2015-07-15 19:51:08
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Q: How do you disconnect the computer to adjust the basic timing on a 1992 Mazda 929?
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