My fuel pump runs when the key is out of ignition but stops w/I try to start it on 1994 Dodge Ram 1500

My truck stopped running like it went out of gas while i was driving. I determined it was the fuel pump and had it replaced. The truck ran fine for 4 days, I went to start it and it wouold crank but not turn over. I realized the fuel pump runs without the key in the ignition but shuts off the minute I try to start it. The pressure is 40lbs the relay is good on all relayts in the box, the connector to the fuel pump is a one way connect so no splicing errors on my part. Im at a loss and no one has seen this before Please help

by in Altus, OK on November 12, 2012
1 answer 3 comments
ANSWER by , November 12, 2012
did you test or repl the ASD relay?
COMMENT by , November 12, 2012
I didnt replace but tested it and seemed to be ok
COMMENT by , November 12, 2012
SWITCH IT WITH A SAME NUMBER RELAY FROM FUSE BOX AND SEE IF THAT FIXES IT. IF NO SAME RELAY FOR THE MINOR COST REPL IT TO START WITH
COMMENT by , November 12, 2012
ok I will I believe I did but yes easy fix so Ill do it again. If that doesnt do it and you canthink of anything else please let me know thanks so much!