hi. please search forum using key words such as. "no start" or "no spark" and see what that yields you first.
thank you.
Here I did a little digging for you:
http://www.toyota-supra.info/forums/...-question.html
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http://www.toyota-supra.info/forums/...-problems.html
This second one was started by a goober but still lists some good reference sites and troubleshooting.