Main Relay Clicking on and off
 

Just wondering if anyone knows about why this would happen. It starts once or twice then clicks on and off. Making the fuel pump turn on and off. Just trying to get some answer. Thanks TR.

will it run? or it shuts off and stays off?
sounds like the relay is bad

The relay clicks on when you turn the key on, turning on the fuel pump, then clicks off when fuel pressure is reached, turning off the fuel pump. It will do this again the next time the key is turned on, running only as long as it takes to reach pressure (or not at all if pressure is already maxed out) clicking off again.

The first time i start it, it will stay running for a min or so then after that the relay clicks off and on repeatedly, not allowing for it to start again.

Relay clicking on and off usually means bad relay, or not enough voltage to keep it "on".

Post up your results, please.-Bob

Appreciate the responses everyone. Thanks

If want to know why the relay goes bad, well its actually a manufacturing fault, the solder joints usually become loose from the vibrations in the car, this used to be a problem with older relays and Honda had issued a service bullitan about it back in the days, if you get a new relay that should happen again, or you can re solider it your self.

These should help. Ive seen this once before and it was the PCM.

http://img.photobucket.com/albums/v6...scan0001-2.jpg

http://img.photobucket.com/albums/v6...scan0002-3.jpg

http://img.photobucket.com/albums/v6...scan0003-1.jpg

http://img.photobucket.com/albums/v6...scan0004-1.jpg

thanks