View Full Version : Need quick fuel pump help
Nismo241
03-19-2003, 08:41 AM
Well, I'm pretty much done with my RB20 swap, but, my fiel pump isn't coming on. Now the relay is fine, the fuse is not blown, it didnt have to be wired into anything, cause I kept my stock 240 interior harness. My question is what should I do to check everything. The motor turns over it just doesn't fire. I'm 90% sure it's not a spark problem, there is absolutely no fuel in the lines. Thanks in advance
boosteds14
03-19-2003, 08:44 AM
check the wires on the fuel pump again, you could have disconnected a wire be accident, just remember to disconnect the battery, because one spark and you will be in trouble.
Nismo241
03-19-2003, 08:48 AM
I was going to do so, before, but it didn't work before I put in t he Walbro either, so I know it's not the wires in there. I coul dtrace them all over the place to find if I may have cut on of tghem or something, but I doubt it.
Jim96SC2
03-19-2003, 09:02 AM
Pull off the incoming fuel hose and put it into a can. Turn the key into the ON position (DON'T TURN IT OVER). The pump should start to pressurize the system and fill the can.
If not check the lines aare on the right places. Some people mix up incoming and outgoing.
Nismo241
03-19-2003, 10:27 AM
I"ve done that already, there was nothing, the pump isn't coming on at all. I think it may have ot do with the wiring. There is a plug that is empty for the pump relay, I would assume that it needs to be wired in. We'll see.
Jim96SC2
03-20-2003, 01:40 PM
Dude, get a voltmeter (or some small lightbulb and pull the pump assembly and check if your getting power. Maybe you swapped wires? Check the fuse if not.
Nismo241
03-20-2003, 07:59 PM
I got it figured out with the help of another guy. I just had to wire in the relay from the ECU to the 240 harness relay. The pump works now, it's kinda loud. Now it's just not sprking. I can't figure out why, but we'll see.
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