Crank no start issue?

Engine quit on acceleration, no codes, car started back up ran rough for a minute, made it back to my shop, shut it down. Now it cranks, no start.
Fuel pressure is 55 psi, all 3 packs are good, plugs are good. No coolant leaks.
Any ideas?[/Quote]

It'd be nice if we know the liter of this engine:

Disconnect a plug wire or 2, ground it to the engine crank engine over do you see a snapping blue spark.

If not Inspect/test the CPS ( Crankshaft Positioning Sensor )

It'd be nice if we know the liter of this engine:

Disconnect a plug wire or 2, ground it to the engine crank engine over do you see a snapping blue spark.

If not Inspect/test the CPS ( Crankshaft Positioning Sensor )[/quote]check for spark and injector pulse.