Ok so I have been having this weird problem with the bike. When i got it ran like a champ. Sat for a while and then wouldn't start. Put new plugs in it and ran great. But after sitting again for a bit it won't start all the time.

I can let it sit for a day and then go out and start it and sometimes it will start right up and run. Then i shut it off let it sit for a couple of minutes and try to start it and nothing. Just cranks and cranks.

I have been fighting this for a while now and about ready to shove it off a cliff.

Here is what i have checked so far.

- Put different ECU on, same problem.
- Changed out Fuel Pressure regulator from working bike, nothing
- Has new Plugs
- Did the ignition MOD, but still get the fuel pump to prime and the pink wire has 9.5v
- Went out and got a PC III usb and put it on, still nothing
- Cleaned out the fuel rail, and unplugged and plugged back in the injectors.
- When i pull codes it just pulls #9 which is the ISAT sensor (no biggie)
- But after a while when trying to get it to start it will pull the 11, 12, 13, 14 code, the injector codes.
- Has the tip over sensor by-passed, and the kick stand sensor by-passed.

Also has fresh gas in it.


After all this i am at a loss. Any ideas on what i can look at and check.

Thanks for the help.

 

sounds like a dead battery cell

 

I'm having this exact same problem except for the injector codes. I only got the temp sensor and then I replaced it and nothing. It will run once a day, and then fouls the plugs and won't start. Was there a solution? (ohpleaseohplease)