I just installed a new 255 fuel pump i was just wondering if any of you guys and girls withe these hi flow pumps ever have any problems with your main relay for the fuel.....

 

as for the main relay, i dont think it will supply enough power to the pump to make use of it. i think you may have to wire it to a 12 volt switch from the battery to get efficient use out of it.

 

how about you stop talking. the stock relay is fine for a 255.been daily driving mine for two years.if you do ever have a relay prob,its from the solder separating from the board.it happens over time.re solder it or buy a new one.

 

yeah did you just replace this for your stock pump on a stock engine? there are different ways about making use of this pump. especially if he goes boost.

 

im far from stock.https://honda-tech.com/album.php?albumid=10668 also my my buddy(dc2turbo)is making 450hp on e85 w/1000cc injectors.255 pump.stock relay.

 

What the hell? /\ Been using a stock main relay for five years on two different boosted setups with a 255 and NEVER had any problems.

 

so have about a million other people.i wish people who dont know-would stop posting false info.it discourages new people,and wastes time and money.back to the subject,your stock relay will be fine.

 

nuff said!

 

thanks allgo88,yeah i think my relay is done for i put in the freezer it worked for about 30 seconds,so ill go get a new one

 

Did you see any cracks on the solder on your Main Relay? If you do you can always re-flow the solder joints. Or add new solder. Instead of buying a new main relay.

 

how do you open the casing?

 

Im pretty sure mine clipped on.

 

Your pump will perform better if you wire a 12v source right from the battery using a relay, but that improvement comes from larger then stock gauge wiring, not the relay.

 

so its not really a requirement?

 

bump

 

Just put in a new main relay or re-solder your old one.

You're thinking into this way too much.

 

my car ran good before.. i just installed the same fuel pump, but went to start it and it primed but sounded real loud, then i tried it again and nothin.. now it just cranks, could my main relay have just gone out?

 

Find out why it isn't priming. Test for power at the fuel pump connector. If you're getting power, the main relay is good and the fuel pump is bad. If you're not getting power, either the main relay is bad or you have some other wiring issue. Do you hear the relay click under the dash?

 

no it doesnt click, and the cel light stays on.. i'll check it out today

 

i installed a walbro 255 and a new oem relay at the same time. about 8 months ago. both are still working fine.