Ok... Guys this has me stumped !! Im working on my 99 Accord. I shut it off, and now it wont start. the I bench tested the pump its good, I replaced the fuel pump main, still have no power to fuel pump. all fuses and relays are functioning. I ran direct power from relay, and pump kicks on, but car wont start. Ive noticed that my brake switch, also isnt working, to allow car to release out of park position. is there something that ties these units together? Thanks

 

Check all the fuses, under hood and under dash. Are you getting power into the brake switch?

When the key is turned to on/pos II does the pump get power and the CEL comes on for a few seconds and go off? When the pump was hot wired, did the fuel make it to the fuel rail.

 

So again I went out and it started right up

 

If it's intermittent, maybe a failing or loose ignition switch? Can you jiggle it and see if it doesn't start again?