Without having any tests done to verify the problem, from what you have replaced the problem likely lies with the crankshaft position sensor, or RPM pickup as it was called.
Please verify in someway there is fuel getting to the engine either with a gauge or opening the test port valve, rag next to it, and release the pressure. It should spray heavily if the van was just shut off.
Running fuel pressure at idle should be 58psi, + or - 5psi.
Please post back if the problem is solved or let us know how we can continue to assist you.
Wednesday, November 25th, 2009 AT 8:33 PM