engine management light xb12x

[PhyllisUcker]

Help, poorly Buell! on two occasions ully has cut out completely while riding. won't start at all. After switching off and back on again fan doesn't run. the main symptom is the engine management light flashes on and off constantly and the servo that drives the exhaust valve is repeatedly moving back and forth in sync with the engine light. The only modification i have previously made to the standard exhast system, is to disconect the cable from the servo motor and tie wrap it so the valve is in the open position, i have still left the connection to the motor (not sure that this is the problem though, as it has been running fine since i did this). Because the management light is on, and the rotor is constantly going the ecm won't prime the fuel and the result is the bike can't be started. I have tried reconnecting the valve cable to the motor, checked battery connections, turned ignition on and off countless times, Have also tried disconnecting battery (and grounding it). All to no avail, every time ignition is switched on, the same problem. The only other factor is that bike was being ridden in the rain the first time it cut out (luckily that time it restarted - second time i was well and truly stranded). Any suggestions?

 

[user_deleted]

longshot but did you check the sidestand switch? i mention that because of your Uly doing this for the first time in the rain. and have you plugged into ecm and run diagnostics?

 

[PhyllisUcker]

I've checked, and there is no wiring at all to the sidestand, hence no switch, I thought that was standard on the Ulysses? I haven't got a cable, or ECMSpy, but have tried bridging terminals 1 and 2 to try to find any trouble codes. Unless I am doing something wrong, that is not working either, all I get when I turn on the ignition is the same problem, the engine management light flashes on and off constantly (and rapidly) and the servo that drives the exhaust valve is repeatedly moving back and forth. So I still can't start the bike!!! I have also tried disconnecting the battery completely, switching the ignition to 'on' position, and holding down starter button for 60 seconds to drain any residual current, this hasn't worked either. I've checked battery terminals, and the earths to the frame under the seat, and behind the headlights, all feel tight and solid! I'm a bit stumped at the moment, any help greatly appreciated!

 

[PhyllisUcker]

Thanks for your help guys. I have now got to the bottom of the problem (with some pointers from another forum). The problem was, in fact, one of the relays in the fuse box. Thanks again, and no doubt i'll be back when I have another 'head scratcher'.