Hey all,
I notice that during hot summer days my car will not start for awhile after driving it for a few minutes. The fuel pump relay doesn't engage and hence no fuel gets to the injectors. If I wait say 5min or so, the fuel relay will engage when I turn the key and the car finally starts.

This only happens after short drives (few minutes) not long ones (20 minutes). It has been this way for years and I've lived with it.

The fuel pump relay is a pain to get to and this situation only occurs intermittently in summer. I kind of doubt it's the relay since it works fine usually. Could it be some other sensor that's telling the fuel pump relay not to turn on?

 

Sounds like it's your main relay. I had a similar problem, replaced my relay, and have not had the same problem since.

Check out these links. They show you how to fix it if you have soldering skills.
http://www.marklamond.co.uk/howto/el...main-relay.htm (link fixed)
http://techauto.tripod.com/mainrelay.htm

What happens is the solder joints dry out and separate. The with the heat of a summer day, the joints then expand and contract causing intermittent starting problems.

The main relay is not a pain to get to, and is easy to take out and put back in.

 

It is definitely you main relay system. I have the problem right now as we speak. in the process of replacing. It is a very common problem on hondas. Just think, the longer you wait to replace, eventually its gonna leave you and your gonna be stranded. also, the hotter it gets on the inside of your car, the longer it will take to start. Good luck

 

Muchos thanks!!! :yay:

I can't tell you how many times I had to wait for the car to cool down before starting over the years. I didn't bother trying to fix because I knew a brand new relay would have been expensive and being intermittent, I wasn't sure if that was the problem.

Well, I'm on to fixing it now!!

:canada: :usa:

 

Good luck :thumbup:

 

yah i have the same exact problem, you i couldn't have explained it any better, i also have a 92 ls integra, if you find the problem please let me know, kuz i have spent about $300 replacing parts that did not cause the problem, and i am tired of driving my car like that in the summer. its kinda embarrasing if u know what i mean. raul95020@yahoo.com or cell# 408-607-0352 -Raul

 

i had my main relay checked but speedee said that it looked fine and didn't smell burnt or anything, should the smell or something melted show if its bad? please let me know asap, thanks you can email me raul95020@yahoo.com cell 408-607-0352 -raul

 

i agree, with you were on the same boat, my 92 integra leaves me stranded at work in the burning sun for untill i roll it to some kind of shade, but i had my main relay checked and they said it did not smell burnt , they said it looked fine. Did your main relay have any melted plastic or smell burnt?

please let me know, 408- 607-0352 -Raul

 

When you turn your key to the on position, your check engine light should come on for a couple of seconds and go off. At this same time, your should hear your fuel pump go on (prime itself) under your back seat. Do you hear it?

If your main relay is faulty, it will be intermitent. Having it checked will not always show it not working.

It wouldn't smell burnt because the problem is with dry solder joints on the relay that expand and contract based on the temp.

Just replace the relay, or fix it with the links above.

 

do any of you guys know if theres an easier way to get the OEM part# for the relay other than removing the dash panel and looking at it?