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08 brute fuel pump Problem

brute212010-08-10 22:29:13 +0000 #1
Ok so I just finished up putting the new wiring harness on thinking that would fix my problem with the fuel pump not supplying fuel to the injectors. before I replaced the wiring harness I replaced the fuel pump with a used fuel pump the guy said it was working when he pulled it off and I hooked it up directly to the battery to check and it did work. I am going to go ahead and replace all the the fuses even though they are not bad by the looks of them and if that dont work I dont know what to do. Any Ideas guys? Oh yeah I also pulled the gas line out and blew through it to make sure there was nothing in it too
smutty112010-08-10 22:45:13 +0000 #2
does the fuel pump even turn on for 3 seconds when you turn the ignition on?
brute212010-08-10 22:59:55 +0000 #3
Its not coming on at all and one of the relays are clicking
MeanGreenMan2010-08-10 22:58:18 +0000 #4

Originally Posted by brute21

I replaced the fuel pump with a used fuel pump the guy said it was working when he pulled it off and I hooked it up directly to the battery to check and it did work.

That's not how you check the fuel pump on EFI Brutes. See the manual. You need to measure the actual flowrate. Or test by actual riding.
brute212010-08-10 23:38:38 +0000 #5
problem is I cant test either one because its not even pumping fuel Im leaning towards the ecu or some sensor not supplying it. Before all this happend it would barely supply fuel and then it just stopped on my old pump so I put the new Used one in and nothing, who knows mabe I got a bad pump
filthyredneck08brute2010-08-11 00:32:13 +0000 #6
I was tinkering with some stuff under my seat awhile back and had unplugged my cdi to switch with a different one and when I switched back I didnt have mine plugged in all the way due to sand being packed inside the plug at the bottom keeping it from "clicking" together. My fuel pump didnt turn on when the key was on and bike wouldnt start. After wiggling a few wires I got to the cdi and when I moved it the fuel pump buzzed for a sec and back off. Unplugged cdi and looked inside and noticed the sand...dug it out with a small pick/blew it out and plugged back together and everything started back working. ....May not be the same case for you, but definately something simple that I'd check.
brute212010-08-11 01:00:06 +0000 #7
good Idea I will give it a shot tonight when I get home Im going to bring a bottle of that keyboard cleaner home and try it out.
smutty112010-08-10 23:53:30 +0000 #8
There's two relays that click when you turn the ignition on. One's the fuel pump relay the other's the ignition control relay. The fuel pump one stays on for 3 seconds. If the fuel pump relay isn't clicking you've either got a blown fuse, corroded connection, bad relay, or fried computer.
brute212010-08-11 02:30:43 +0000 #9
well I know the ignition control relay is clicking but I dont hear or feel the fuel pump relay so I am narrowing it down I know its not the fuse because I put all new fuses in it I know its not a bad relay so tonight I am going to barrow my brothers computer and see if that is the problem. thats for your input smutty11 I hope to get this solved before deer season haha



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