Hello everyone, I am relatively new to the motorcycle engine world. Working on my 3rd buggy now and decided to go with the Hayabusa. Its a 2008, put together my own harness and had sensors disabled such as the tip over sensor, secondary TPS, O2, idle control, and pair valve. I have the essentials wired in near identical to the wiring diagram. At the moment I have power where it needs to be, grounds, and sensor grounds. The sensors I do have, all receive their 5V from the ECU. The Injectors and coils are getting their power from relays. Clutch input is good. My problem is that my fuel pump relay is not activating and no spark. It is wired correctly, I'm very good with electrical. One thing I have noticed is pin#39 Y/B is constantly hot. It should ground activating my relay, ECU controlled. Is there an input I must absolutely have for the engine to work? Gear Position? Any suggestions greatly appreciated.
Whats wired, checked and checked again.
Injectors
Coils
Manifold Pressure
TPS
Air Temp
Cam and Crank
Charging system
Starter with input for ECU
Clutch input
Battery is fully charged and tested. 12+ while cranking. If there is something I'm missing, I still have the plugs. If there is any info missing that may help you, ill get it to you as soon as I can.
Whats wired, checked and checked again.
Injectors
Coils
Manifold Pressure
TPS
Air Temp
Cam and Crank
Charging system
Starter with input for ECU
Clutch input
Battery is fully charged and tested. 12+ while cranking. If there is something I'm missing, I still have the plugs. If there is any info missing that may help you, ill get it to you as soon as I can.