[bettyrae69]

Hi There I am hoping someone can help me find the location of the ECM wire relay? I have a 1993 coupe that would not start about a week ago. I am running through every small part change that may be the issue prior to changing out the ECM as I have changed everything else. This car has a DIS and I have replaced the DIS module, the CKP sensor the PIP, EGR valve, plugs wires, and all the rest of the basic parts fuses, links, filters and relays I could but this one little square relay is holding me up. I can't find where it plugs in. I researched the parts and the things those parts do pretty extensively but I just can't find anywhere that tells me the location of that relay. I am telling you it is driving me nuts! I am ready to dismantle the dashborad, it has to be up in there the ECM is in the kick panel on the passenger side. This must be a matter of experince, HELP this is driving me nuts and it cost me four of my finger nails so far. This is great car that is safe for my daughter with good gas mileage I don't want to get rid of it but I trust no one since being burned pretty hard core by a local repair shop regarding a 1993 geo prism, so I am not going to hire someone. In the year I bought it I have replaced the timing belt, the water pump, the signal flasher, done the brakes, I am my own grease monkey now. I can't believe this one little square box is going to foil me. Isn't there a hero out there somewhere. This rescue gets bonus points as there are two maidens in distress, the grease monkey and the driver!

[sleeper_inc]

Ok, I should ask you this question then. Did the car die suddenly?
Does the fuel pump prime when you turn the key to run?
What where you doing when it died?

[rustybuick]

I did'nt see if you had mentioned checking the fuel end of the spectrum. I only say this because I chased electrical gremlins for three miserable days. I finally realized it was a fuel delivery problem.

[Marvin]

On the right strut tower, under the hood , there's a black box about 4.5 by 5 inches and about an inch and a half thick (it's been a while so don't press the measurements too closely) known as the Integrated Relay Module. It switches power to the computer, the fuel pump, and the radiator cooling fan. Hope this is what you're looking for.
P.S. If I remember right, this module also switches the air conditioner compressor clutch.

[sleeper_inc]

This is what I think your talking about

http://i129.photobucket.com/albums/p...nc/Infoon2.jpg

[spctrbytz]

Check to see if the ignition switch (on the right side of the steering column about even with the dash bezel) has split open. My 1988 2.3 ragtop had a no-start situation that would come and go, this simple part turned out to be the culprit after a lot of pulled hair.

Here's a link to an article desribing the process - the first photo shows what a split switch looks like.

Replace a 1979-1993 Ignition Switch Assembly

HTH

[Marvin]

Did any of this solve the trouble,Betty?