I have a 1992 honda accord that has me stumped. Sometimes it will start and run with no problems, sometimes it will just turn over and not start at all. Here's what we have replaced so far, main relay, timing belt, plugs, plug wires, distributor, and fuel pump. We just don't know where to go next. It is usually getting plenty of fuel, but sometimes it's not. Is there more than one relay for the fuel pump? Any ideas of what to try next?

 

Check for spark. If not, it could be the coil.

 

Hi, did u replace with a brand new main relay? I think it's possible that there is a hair line crack inside solder joint of the pcb. It's best to open the main relay and then ckeck for crack in the solder by using a magnifying glass.

If any hairline crack found then resolder it and your main relay should be fine.
In hot weather the hair line crack gets bigger, hence it cuts out the circuit.
I had the same problem years ago, I resolder my main relay and working great.

 

He made one post a month ago, I'm pretty sure he's long gone.