This is one half of a 1994 coil pack, removed from
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These are the electrical connections for the coil pack. Pin 1: Input that makes the coil spark. Pin 2: Ground Pin 3: Output - goes to your tachometer and also to the computer Pin 4: Twelve volt power. |
How to bench test. |
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This is what one technique looks like. This does not test the tachometer output, which is too fast to see with your eye. |
Disclaimer: Not a certifed auto mechanic. Not a
Mazda technician. You have 20 thousand volts sparking here, so be careful and
do not shock yourself or you could be injured.
The information on this page is my own interpretation and may be flat-ass wrong. Use at your own discretion.