| Author | Message | ||
     Tirebiter |
Just completed an engine overhaul and powder coated frame and have no signal voltage at the coil plug in. I was able to connect to ECMspy and set the tps zero and static timing and the bike shows no trouble codes. I have continuity from the ECM plug to the coil plug-in and have 12v at the center pin. I thought I found the problem when I noticed the lean angle sensor mounted upside down. Dah! Corrected but still no fire. When I had the frame coated I made sure to mask certain obvious areas from being coated to preserve the ground. I may have missed something. Tried swapping out the lean angle sensor and the ECM but no luck. I will be making myself a breakout box to help in diagnosing problems in the future. Any ideas will be appreciated. Steve | ||
| Buelltours |
Steve, I am still trying to get a hold of Hugh. He might have a good idea. If you use the search function here with "coil spark ground" you find a lot of related articles which might help. Anyone? I looked at Steve's bike yesterday and couldn't come up with a good suggestion either.....  | ||
| Jim2 |
If I remember right, you might check that the Voltage Regulator has a good ground. | ||
| Hughlysses |
Steve, I just got Cornel's message. You already checked the first thing I thought of (continuity from ECM to coil plug). It couldn't hurt to go back and check the grounds, but I suspect that's not it. Swapping ECM's would seem to rule that out as being a problem. What about the timing sensor? I would expect this signal triggers the ECM to send fire the coil. You could check the sensor itself (I'm guessing there's a recommended ohm reading for it) and check continuity between the connection for it and the ECM plugs. I'm guessing this is going to be something really simple; just stick with it until you find it. Good luck! (Message edited by Hughlysses on July 02, 2012) | ||
| Buellistic |
Start where BATTERY/GROUND is not and find where it is ... | ||
| Tirebiter |
Thanks for the replies everyone. I did have the cam sensor out of the cover for machining but when I set the static timing you could see the timing change and it ended up in the middle of the adjustment slot when at TDC. I need to check the lean angle sensor wiring to make sure I don't have an open somewhere. I sent Al at American Sport Bikes a note descibing my problem and will talk to him tomorrow. I did so many things to this bike that I had an idea it could become a bear. I did change the original wiring harness with 1 that I got off ebay. When I mounted the improved exhaust hanger I had instructions for properly grounding the voltage regulator. I will be checking all grounds after checking the angle sensor leads. Thanks again!! Steve (Message edited by tirebiter on July 02, 2012) | ||
| Ratbuell |
Do you have timing signal going IN to the ECM? Coming OUT of the sensor? Coming OUT of the ECM to the coil? It sounds like you have a good handle on how things work, just take it a step at a time. Is the sensor working? Does the ECM see it? Does the ECM send a signal out to the coil? Is it getting to the coil? There's not many links in this chain...it's just a matter of isolating each one and testing it. | ||
| Hughlysses |
Bump on this- I hate troubleshooting threads that never get resolved! Any progress getting it running? |
