2009 Honda Ruckus, ECU Problems By mikey34 (Read 10,249 times)

[mikey34]

Hey guys, I have a 2009 Ruckus 50, that I believe has burnt out it's computer. I recently upgraded the fuel pump to a 12volt micro fuel pump. When I wired in the pump, I used the hot wire from the old pump, and grounded to frame. Along with the hot wire, the Ruckus has a
white/red striped wire, that I believe is a remote wire, because it would not keep the fuel pump on unless this wire had voltage going to it. I wired the Hot 12volt Red/Black striped wire with the red/white when I put the pump in, and it ran great for over 20miles... However, I dont think the red/white wire was supposed to have a full 12volts going to it, and now I have a burning plastic smell coming from the ECU.

Does ANYONE, have a 2009 Ruckus wiring diagram, I am in desperate need for one, and havnt been able to find one... Thanks in Advance!!!

[Guitarman]

This should be close enough:

2007 Ruckus

and

Wiring Diagram

[mikey34]

Thanks Guitarman,

The owner ordered a new ECU($311.00), Since I am afraid the ecu fried from me connecting the remote wire of the fuel pump, to the 12volt power wire when I replaced with a micro fuel pump from O'Reillys Auto Parts (model 12S). I am gonna run a new power wire from the fuse box, to the pump. Should take care of that hopefully...

[Bashan]

Good grief Mickey, if G man got the right wd, good freakin' luck. That is a nightmare. I agree completely, keep the energy of the pump away from the ECU. The only thing I'm concerned about is does the ECU need feedback from the pump to operate? I'd hook the pump up to the ignition switch and ground it right to the battery to isolate it. If the ECU won't operate you might have to run voltage through the feedback circuit on the ECU. At $300.00 that's a bit of a gamble. Why do they engineer crap like this on a scooter? Rich

[cyborg]

Cause they don't want anyone messing with it,,, it's like a $80,000 Mercedes has no dipstick for checking the oil

[mikey34]

Hey guys, wanted to update you with some details...

I got the new ECU in, I also did some research on the 15th PIN on the main harness of it too(White with Yellow stripe). It goes to the fuel pump to complete the circuit and give the pump a Negative Signal. When I figured this out, I rewired the pump using the w/y wire as ground, and noticed this is how the Ruckus controls it's fuel consumption, AND its ability to pull back fuel past 40mph, governing the bike :/

I'm pleased to say that it now runs great! Went ahead and replaced all the lines and filter, and changed the engine oil, per the owners request.

[2009ruckus]

Miley34 Or anyone willing to clarify, So in order to use the cheaper fuel pump from oreilly I have to cut the red 12v wire that is on my existing plug, then find the white/yellow ground wire in the harness, then connect these to the new pump? And I disregard the ground wire on my existing plug? Or ground that as well?
Any help appreciated I want to save some cash but don't want to fry my ECU!
I have a 2009 nps50 ruckus