My 92 f150 with a 4.9 had been running rough and dying over the last week. I thought I had the problem fixed when it died and I found a loose battery cable. Replaced the cable ends and the truck started fine but when I shut it off it would not restart. I cant get it to start for anything now and I need it to get to work.

I noticed that the fuel pump continued to run anytime the key was on. Im pretty sure it would always run for a couple seconds before and then shut off, but now it just keeps running until I shut the key off.

I replaced the fuel pressure regulator today, but that did not help. Also, now when I try to get computer codes it will not let me. I dont know if that is due to the pumop running or not.

Please help.