| Author | Message | ||
     Motobear46 |
My 06 Uly has 38k miles. It will miss and or die on me at very random times. It may run a thousand miles without missing a beat or it may die ten times on one ride into work. I removed ,cleaned and re torqued the three ground connections. I swapped the four relays around in the fuse block. I examined the wiring harness under the seat ,around the steering head and behind the front windscreen cover. I found exposed copper under the seat on three wires and repaired that, but that wasn't the problem. I changed out the plugs, no help.Good voltage on the battery. Should I be thinking of a bad sensor, the bank or cam sensor. I really need some more ideas, I really don't want to take such an intermittent problem to the dealer. Please help you'll be saving my mind. Barry | ||
| 5liter |
Side stand switch? | ||
| Motobear46 |
There is no side stand switch. As for other switches , the clutch switch and the neutral switch would seem to only affect the starting circuit.Once the bike is running I don't believe they can cause problems at that point.I never have problems starting the bike and I've tried shaking the harness around while it's idling and I can't get the problem to occur. Barry | ||
| 5liter |
No side stand switch? I've got an 02 S3T so maybe they did away with that switch on yours. | ||
| Kalali |
What about head or intake air temperature sensors? I also remember reading about cases where the side stand and/or clutch switches causing symptoms like yours even though you are technically correct about starting circuit, etc. Having said this, my bet would be on the cam position sensor if you have exhausted the wiring/ground possibilities. Do you have ECMSPY? If not, you should consider getting the cable and run through some diagnostics just so can eliminate possibilities. Good luck and let us know how you make out. | ||
| Sparky |
Wasn't there a batch of bad Bank Angle Sensors affecting drive-ability on certain XB models reported here? That might be your problem. Do a search on Bank Angle Sensor to see what people did to troubleshoot it. | ||
| Jlnance |
It sounds like the bank angle sensor. Does the bike start back up if you turn the kill switch off and back on? Did you check the ecm for trouble codes? | ||
| Motobear46 |
There was a recall were they replaced the BAS and relocated it to the seat latch bracket. I was thinking of opening the sensor and installing a couple or resistors in a voltage dividing setup that would return something like 1.5vdc to the ECM.The bike does start up after I cycle the run switch. I've never had the check engine light come on,or any error code.I don't have ECMSPY .If there was an intermittent trigger from the cam sensor for example would there be a " history" of that stored in the ecm that I could retrieve? Off the top of my head I am thinking the heat temp sensor ,the O2 sensor or the air intake sensor might cause a poor idle or acceleration problems but not an outright cutting out of the entire system. If I had the ECMSPY cable could I take it on the road with me to get some sort of real time diagnostic information. Thanks again barry | ||
| Court |
Has your dealer contacted Buell Technical Service? | ||
| Motobear46 |
I'm trying to avoid the dealer.Several months ago my right turn signal stopped working.Rather than replace the bad wire in the harness they soldered in a jumper from the connector to the turn signal. It wasn't a pretty job.I fear though I may have to go to them in the end. Barry | ||
| Jlnance |
The bike does start up after I cycle the run switch. That sounds very much like the bank angle sensor. There is a history saved in the ECM. You can get it out with out Ecmspy, you have to jumper two pins together. I don't have a link handy, but there are instructions somewhere on this sit for doing it. I'm trying to avoid the dealer. You can always try a different dealer. I know that's not the most convenient thing, but... | ||
| Motobear46 |
With a little free time this weekend I've been trying to learn more about what step to take next. I replaced the plug wires in the off chance there was some intermittent leakage there. No luck, same symptoms.I checked connector 77 that is mentioned in a number of threads,looked brand new.I've decided to try a new ecm. Since I'm replacing it I decided to get the race ecm since I've been running the pro series muffler for the last couple of years.This does bring up another question. With the ecmspy cable and software will I be able to work with this ecm? The ecmspy homepage doesn't list the race ecm on its list of supported devices. If it doesn't can I assume the dealer would still be able to do a TPS reset for me? Every day without my bike sucks! Barry | ||
| Kalali |
The ECMSPY is a software that "talks" to the ECM. It does not care what ECM (stock or Race) you have. You can easily do a TPS reset using the ECMPY. Just bring up the the correct page and do it. | ||
| Motobear46 |
I just received my spy cable from American Sport Bike. It connected fine and the first thing I learned is my bike has no error codes other than the fan failure I repaired a year ago. Under the diagnostic tab I see a number of components listed. And a larger CPS window. What is the significance of the randomly changing 0 tom 5? Is this the cam position sensor? Are the component tests a step by step test I can complete or are they more advanced than I should attempt,i.e requiring other specialized tools etc.? Last question of the night. Is there a way to take the bike out with the laptop connected and save a history of the various sensor outputs so I can find the one reading somewhere that corresponds with my bike's intermittent problem? I'm doing my best to read through all the old ecmspy threads but it's a big task! Barry | ||
| 5liter |
You can download the manual from here. http://www.ecmspy.com/ | ||
| Fahren |
Barry, I'm new to ecmspy, too, but as far as I can see, one should log a ride with laptop hooked up to bike. There's a button at top of ecmspy that looks like a floppy disc with a red slash thru it. Click it, and you are logging. Click again at end, you have logged. The data is saved in c:/programs/ecmspy/megalog. You will need to download megalog viewer program to view the log, but advice on reading it is better left to the gurus. Hope this helps. | ||
| Motobear46 |
The latest.... I finally was able to run the bike on the road with the ecmspy running. When I viewed the log I saw what looked to be random drops in the tps voltage. I ordered and replaced the TPS. I followed the tps reset threads I've read, turning the idle adjustment to 0 volts and beyond. Resetting the Tps to zero while holding pressure on the throttle to keep it closed. When I fire it up now it runs like garbage, it won't hold idle and it's spitting and backfiring.When I turn the bike off and then back on I see the Tps setting at 7.9 not the 5.2-5.6 I set it at a moment ago. What did I do wrong??? Barry | ||
| Sparky |
Hang in there. The TPS changes value because you have to raise the idle rpms after setting it at fully closed, right? I believe you are reading the TPS value at the idle speed throttle position. Now, you said you found exposed copper on three wires and repaired those. It's possible there are more faulty wires you haven't found yet. There is a lot of wiring related to the engine sensors that has to be 100% reliable for the bike to operate flawlessly. That, and perhaps the TP sensor itself could be faulty. | ||
| Kalali |
My experience with chaffed wire is if you find one, there is always one more out there you missed... It is a lot of hassle but you may need to look and trace each and every wire to make sure you did not miss one... | ||
| Al_lighton |
06 Ulys didn't come with the spacer on the ECM to keep the seat from applying pressure to the ECM. The result was that some of them would get a cracked circuit card in the ECM. This problem can be a devil to diagnose, as the problem comes and goes somewhat randomly. I'd certainly be checking for that in this case, since the problem sounds pretty random. Inspect the ECM carefully around where the connectors attach to the body, and apply gentle pressure there while the engine is running to see if you can trigger a failure. Not sure what you did wrong on the TPS reset, but I just emailed you a document with the correct procedure, maybe it'll help. Al | ||
| Motobear46 |
I do have the spacer installed on my Uly. I followed you instructions to the letter. I then did a number of resets at different initial settings from .90volts with the butterfly sticking closed to 1.2 volts in .05 increments. My bike either idles at 1000rpm while "chuffing" and then dying, to a rising and falling idle until it dies as well.When cold, am I correct in thinking the ecm is in closed loop mode and I can ignore the o2,temp and air intake sensors as possible problems? I may reinstall the original tps at this point to see if I can at least regain it's earlier state of running. Thanks for the help Barry |
