Ignition/Tuner/ECM/Fuel InjectionNeed advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.
1. Does the bike have a security system?
2. May want to check all the hoses from the fuel pump to the injectors, may be clogged if the fuel pump deteriorated in your hands.
3. Did you replace the fuel filter and strainer?
4. Did you check the Pressure Regulator Assembly?
5. Valve Assembly?
6. As Max and your codes indicate, your not getting voltage to the injectors, check for broken wires. Did the previous owner have the tank off? Check wiring to the injectors.
1. No security System
2. checked the fuel line and cleaned it out when i removed injectors
3. replaced the entire fuel pump assembly with a new
4. new pressure regulator in the fuel pump assembly
5. engine vales? no. fuel check valve? new with fuel pump assembly
6. I've been checking for loose harnesses, damaged/crimped wires. nothing.
Thank You! Really appreciate your input. Sure hoping i can get this figured out today so i can it on the road this weekend.
how are you checking that voltage on the fuelpump harness? Check it two ways, one with the red lead on the hot and black leaad to the groun on the engine or transmission, then check it with the red and black leads in the harness. And check that jack @Max Headflow show you to check.
I’ve been unplugging harnesses and inspecting wires, looking for shorts. Codes likely resulting from that.
no ecm code anymore but stumped why I’m getting power at the battery side of the fuel pump harness and can jump the pump off from the pump side but can’t get power to the pump when connected.
plug back in everything , spray out all the connectors with electric cleaner, and try it, if it still dont work, check the ecm ground stud, also , if it dont work, take a wire and run it directly from the system relay ,orange/grey wire, to the fuel pump connector hot side. If that dont work run a ground from the fuel pump connector to transmission ground or chassis ground ( black wire)
04-19-2024, 08:47 AM
