Here is the run down. 1992 Honda Civic Dx. Fuel Pump is not priming. Fuel pump is good, checked it with voltage. Just put a brand new main relay in the vehicle as well. Car turns over and everything is fine but the fuel pump wont prime for some reason. Checked all fueses and grounds already as well. What could be the problem?
Any input is highly appreciated

 

could there be a fuel cutoff switch you dont' know about (if you bought the car second hand?) I'd run a wire from the main relay to the pump and try again... if the car starts, just replace the wire man...

 

break out the multimeter and see if your getting power at the realy whith koeo there should be a 12v signal sent to the relay the pump is only suppose to turn on for a quick second before its started try clicking to key on and off a few times to make fuel pressure rise i had that problem once also make sure you have an adequate amount of gas

 

Checked the power, we are getting power at the relay and the car has a half tank of gask. I am about to hardwire the f***in thing. Any other suggestions?

 

what about power coming out of the relay apply 12 volts to the sihnal wire you haear clicking right?? after the clicking see if you see a 12 volt signal leaving the relay

 

No power leaving the relay. Tried 4 diff relays already. I hear a click when you first turn the ignition on, I dont hear the second click or the fuel pump priming. What else could it be?

 

Wierd thing just happened, tried to jump the computer to run the codes and the car decided to start. Shut it off and tried it about 10 times, kept starting every time. Its like the car is cursed lol

 

that's weird. maybe it was just something small. i dunno. at least it's working now though.

 

Hopefully it will continue to keep starting.

EVIL

 

UPDATE:

After checking every single wire in the harness, replacing the main relay, testing every single fuse, replacing the fuel pump etc. The conclusion was a faulty ecu. I never had an ecu go dead on a honda, but know atleast I know that it "could" happen. I am aware that a lot of DSM ecu's go dead, but never seen a honda/acura ecu go sour.

BTW, I will try to do a write up on this in the future, since I have seen a lot of posts about similar problems that people are having with their vehicles.

EVIL

 

Evil DOHC,
If you get this post, email me at psmwrx@gmail.com asap

Thanks,
John L