AMA Supersport Racer
Join Date: Sep 2003
Thanked 10 Times in 9 Posts
Feedback Score: 0 reviews
No spark 2005 ****fixed**** BAD ECU
Ignition relay turns on....but the fuel pump relay wont turn on. From the wire diagram the 12 low side comes from the ignition relay to the fuel relay ( the ignition is on feeding 12v to the fuel relay low side) if I send a chassis ground to the fuel relay ground it( the relay) turns on, sending 12v to the fuel pump.....soooo I've got a problem with the brown/black wire to the ecm. I'm not getting a ground from the ecm to fire the fuel relay???? I also have no spark at the plugs???? BAC is shorted at the 12c plugs (blue/gray) and I can hear the ignition relay click when I remove. Yes the kick stand switch is shorted and the ignition switch/run switch is working(bypassed) It's looking like a bad ecm, but I don't have any diagrams of what the ecm is putting out(12v or ground) Any ideas?? I have 12v at the injectors but the grounds are missing. The bike(05) has been sitting since 06. Fuel tank is on the way, with pump. I know I'm missing something....
Last edited by doofiep007; 01-01-2011 at 07:49 PM.