Runs for a few minutes in the morning, then no start.
 

Having a problem with my 1998 Japan Spec SPi.

Leading up to the problem, the car would occassionally die while driving. I'd pull over, it would start up again and I would keep going. This problem has now gotten much worse and it wont stay running at all.

If the car has been left overnight, it will start and run for 1-2 minutes.

If the car has been ran (slightly warmed up), it will start for a few seconds and then shut off. It will only start if the key has been turned off for ~10 seconds and the relay shuts off. If the car dies and you dont turn the key off, and try to crank the engine, it will turn over but wont start at all. Turn the key off for enough time for the relay pack to shut off and it will start back up for a few seconds before shutting off again.

The injector DOES NOT spray when when cranking after it has died, only if trying after turning key off for ~10 seconds. Injector stops spraying when the car dies.

The car is only getting fuel on crank, and only if the relay pack has been allowed enough time to reset.

• Relay pack is functioning as it should.
• Fuel pump primes and runs.
• Fuel pump relay shuts off a few seconds AFTER the car dies.
• The car does not cough or try to run, it acts as if someone turns the key off, just instantly shuts off.
• Power is constant across all the fuses that should have power when they are suppose to get power.
• Getting spark during crank and no start condition.

• Tried bypassing fuel inertia switch, no change.
• Tried replacing fuel filter, no change.
• Tried replacing crankshaft position sensor, no change.

It seems like the computer is telling the injector to stop spraying. My understanding is that the computer tells the injector whento spray absed on crankshaft position sensor. Does it rely on anything else?