We have a 1992 Honda Accord that won't start. Same problem as many others on this website. That is when it gets hot outside etc... the car won't start. We have replaced the distributor, coil, and fuel pump. We are still having the problem. We have read the forums and it appears that our main relay switch may be bad. Has replacing the main relay switch fixed it? I read on one forum that the just resoldering it has worked... sure would be nice to save a few bucks but not if it would create further furstration.

CroCivic91

Main relay gives power to the ECU and fuel pump...if the relay is bad, pump wont operate. So the car will most likely run on the fuel that is still under pressure from when you last turned the car off, but will stop imeddiately.

But back to your question...yes, if a relay is bad, fuel pump won't operate, and fuel pressure will drop.

On a side note, do not try buying new relay right away. It might be a waste of money. I just resoldered mine and it runs fine for a few months now.

EGRI

Thank you for the info. I apologize I didn't read your reply until after I revised my posting. I will give it a try.

CroCivic91

No problems. Do get back to us when you try the main relay.

EGRI

Thank you for your advice. Re-sodering the main relay appears to have worked. The real test will be in July and August when tempatures reach 90+. Even at that replacing it is certainly cheaper than a fuel pump. Thanks again.

CroCivic91

Woot! I'm truly glad that helped. Mine is working flawlessly for a few months now. But you're right, it will be put to real test in the summer!

Enjoy your Honda!