Ok... here goes.

I have been fighting with my son's 87,000 mile 94 DX, and it I am at my wit's end. I have not been able to find anything online that has worked, so I am posting here to see if someone may be able to help me.

Car ran fine for 3 days after purchase... woke up one morning.. won't start. Turn the key on, it turns over but won't start. I turn the key off, then wait a sec or two, turn it back on, check engine light comes on,and the fuel pump does not engage.

If you turn the key on and wait about 30-40 seconds, the pump finally does it's 2 second prime, the CEL goes off, and the car starts and runs perfectly.

If you turn it off and turn it back on, it may only take 10 seconds for the pump to kick in this time.

Turn it off and turn it on again, it only takes a second or two.

It's almost like there would be a capacitor somewhere that is warming up, and then the pump kicks in.

Changed the fuel pump as well as the main relay, since most of the posts that I have found have said that these were the most two likely culprits. (Fuel pump needed to be changed anyways, as it sounded like a gravel crusher was under the rear seat) but to no avail.. the problem still exists.

The fuel filter and battery have also been replaced.

I realize that I am a complete newbie here, but I would be eternally grateful for any insight that you may be able to provide.

Thanks