Without diagnosing the problem, it is not possible to say what the problem is.
If the rpm is erratic, the most likely fault would be a failed ignition coil which could fail when it heats up.
https://www.2carpros.com/articles/car-cranks-but-wont-start
The above link explains what to look for if you are able to crank but not start.
another common cause of intermittent stalling and non starting would be a faulty PGM-FI main relay. Resoldering the relay circuit board usually solves the problem.
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Friday, August 12th, 2011 AT 8:20 PM