how long since a tune-up? Any applicable trouble codes? Make sure battery has a full charge. If it cranks good but won't start, have a helper crank it while you check for spark at the plugs. Use a gage and check proper fuel pressure. Check fuel injector pulse. Another thought is your security system?
Will not fire
All I can do is help with testing, you have to do the testing.
Ck the crank sensor if your battery is charged,ck engine grounds
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