Bleezy

Alright guys, i could use some advice on this problem. Here is the break down on my situation. I plug the key in i all the lights are good, and i can hear the fuel pump priming. The car will start, but when it gets warm it seems like the gas is getting cut off, and the vehicle turns off. When i try to restart the car, fuel pump does not prime until it cools off.

I have had the following things changed.

Things that have been replaced:
Fuel Pump.
Fuel Filter.
Main Relay
Ignition Control module

I just recently changed the Ignition Control Module, and i thought that fixed it. I drove my care around for about an hour, and the random shutting off stopped. I left my car idling, turned it on and of a few times everything seemed ok. I come back an hour later to start my car... it wont turn on.

I am stumped on what is going on here. Any ideas ?

OldSchool Honda

Had a similar problem, though it wouldn't abnormally shut off; instead it would refuse to restart after I turned it off (after reaching operating temp).

Give your PGMFI relay a bench test (if you replaced it with a new one) to determine if the relay works 100% of the time. Try that before and after your car starts acting weird.

Also, there are wires running from your wiring harness, through your ignition, to your PGMFI relay. (Forget which color to ignition from fuse, & the YEL/BLK off the ignition) As in my case, it turned out that my ignition didn't want to power the relay under operating temperatures.

Bleezy

After lurking in forums, i was 99% sure it was the main relay because my car symptoms were exactly the same as the problems other people were having with their relay.

So i bought brand new, unused, main relay. I turned my car on so it can get hot, thus duplicating the problem. When my car wouldn't start i replaced the old relay with a new one. Well the car didnt start with the new one, so i know its not the main relay.

Bleezy

.... anyone ?

TOO MUCH TORQUE

check the grounds...

engine, transmission, thermostat(think this is also the main relay ground)

Bleezy

Thanks, ill check that out tomorrow.

giotein

^^+1 double check grounds!

I had a similar problem recently and it was due to my o2 sensor grounding when my car was hot. The o2 sensor wire melted onto my exhaust pipe causing it to ground when the pipe got hot.