HELP! Bike won't start
I was supposed to ride around Lake Huron this weekend but I got stopped right on my driveway. The bike wouldn't start. It always started within a second of pushing the start button except now. It cranks and sometimes fire up for a rev or two. I started to diagnose and finally got an FI code from it, code C46. C46 is the EXCVA or the exhaust control valve.
I spent over half a day making sure the whole exhaust valve system works correctly, and it sure seems to work correctly. I manually applied 12V to it and it moved correctly, checked the feedback sensor and it was also working within specs. I also cleaned out and lubed and tightened (to torque specs) the physical valve in exhaust. No short circuits that I could detect either.
The manual tells me that it's ECM, aka the "computer". I don't really believe it, ECMs rarely fail. There are no other codes being set, all the basics are there (fuel, air, spark). So this is my next step and what I need help on. I need to borrow an ECM from someone. I don't want to buy one ($660 from RonAyers) unless I'm sure that's the issue. It's 2002 GSXR1000.
Thanks guys & gals.