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 on November 12, 2012
did you test or repl the ASD relay?
COMMENT by on November 12, 2012
I didnt replace but tested it and seemed to be ok
COMMENT by on 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 on 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!