Does anybody have a recommendation for a BMSK repairer and some idea of cost? Or is a second had unit worth a go? Would I be better off with a new one £££?
Tia
Tia
K25 twin cam BMSK Ecu
- Thread starter bmstan
- Start date
SO what is the Model and Year of the bike and the problem ??
Is it definitely the BMSK??
Just had a Hexhead BMSPK repaired by ECU.de
The quote was €360 so total cost was about €400 by the time I shipped it to them. But they repaired it and it works. I had confidence when the model of ECU was listed on their site and a description of the fault I had.
So maybe not as straightforward for you to ship to Germany but I had Volvo clocks repaired in the UK and shipped back to me in ROI without extra customs charges. I think the item was declared low value if that helps.
The quote was €360 so total cost was about €400 by the time I shipped it to them. But they repaired it and it works. I had confidence when the model of ECU was listed on their site and a description of the fault I had.
So maybe not as straightforward for you to ship to Germany but I had Volvo clocks repaired in the UK and shipped back to me in ROI without extra customs charges. I think the item was declared low value if that helps.
Bike is a 2010 1200 anniversary twin cam gs 115,000miles. Used GS 911 for checking. It has had various odd intermittent symptoms for a couple of months, always starts. Oil level sensor not reading, replaced and worked on the next ride, then stopped. When checked out of the bike it does switch. Tickover, sometimes it will and then it doesn't, Tps sensor changed. When its on the gas it seems to be going ok ... Lambda sensors both giving odd readings, now number 2 is consistently not responding, swapped over and still same fault and another known good one is the same. Looms from Lambda plugs to BMSK plugs checked out ok with multimeter and with a 12v bulb. GS911;- Fault Code Description CAN-bus error: No communication with ANY of the other control units, this keeps recurring. But if I do an individual function check everything gives me a reading? The oil level sensor says not responding. So everything seems to be checking out ok up to the BMSK.
You have been very thorough 
I am wondering about a broken wire on the CAN High / CAN Low ?? Or a failure inside a Module or at the termination ?
The Bulb was a good call LEDs can show a positive when its bollixed
Body control usually fail altogether or a particular circuit rather than intermittently Which makes me think broken wire or a break induced short ?
I am wondering about a broken wire on the CAN High / CAN Low ?? Or a failure inside a Module or at the termination ?
The Bulb was a good call LEDs can show a positive when its bollixed
Body control usually fail altogether or a particular circuit rather than intermittently Which makes me think broken wire or a break induced short ?
Can’t help with BMSK repairs but my old Hex had loom damage due to wires fretting at both the headstock and the frame by your right knee as sat on the bike, with insulation broken and green copper verdigris corrosion showing which I chopped out and repaired.
The Hexhead loom can be quite tightly routed in places, Dr Farkoff may well be onto something.
FWIW I also had to replace the sump oil float switch, both lambdas, TPS and my bike had a rough idle often with smooth running only once in a blue moon, I never got to the bottom of the cause.
The Hexhead loom can be quite tightly routed in places, Dr Farkoff may well be onto something.
FWIW I also had to replace the sump oil float switch, both lambdas, TPS and my bike had a rough idle often with smooth running only once in a blue moon, I never got to the bottom of the cause.
Thanks for all the responses.You have been very thorough
I am wondering about a broken wire on the CAN High / CAN Low ?? Or a failure inside a Module or at the termination ?
The Bulb was a good call LEDs can show a positive when its bollixed
Body control usually fail altogether or a particular circuit rather than intermittently Which makes me think broken wire or a break induced short ?
I've had a good look around the looms and there is nothing standing out regarding tight/trapped/or broken wires with the tank off. If I put the tank back on then its not really possible to get access to the wires to move the looms around when it's running to make a fault show. It has nearly had me on the floor a couple of times coming to a halt when it abruptly loses the tickover and stalls, short legs don't help, but it has always fired up straight away.Can you give me any ideas where I should be looking regards "a broken wire on the CAN High / CAN Low"? I think I've got to the point where I'm starting to go round in circles...
I am coming to the conclusion that it probably is the BMSKP with the number of strange readings I've been getting.
Good job I have a 90s to sit on and cheer me up
This sounds similar to a faulty TPS sensor. If you search for that you will find folks reporting same, stalling when coming to a stop.
My single cam has done it in the past and I am fairly confident that taking TPS apart and giving it squirt with contact cleaner and rotating it with a flat blade screwdriver to clean up the tracks has improved it.
Replacing it is another option.
Tickover, sometimes it will and then it doesn't, Tps sensor changed.
As above the TPS was the first thing I changed, even though the old one gave good readings
I've also used ECU.de as mentioned above. In the first instance, contact them with what you've said here abut the bikes faults and they may be able to give you some things to check before sending the unit to them for testing/repairs.
They have a member of staff I spoke to on the phone who speaks excellent English.
They have a member of staff I spoke to on the phone who speaks excellent English.
For info this is the reply to my query with ecu.de
Dear Mr. Wood,
Thank you for your inquiry.
Unfortunately, we're unable to offer our services for the UK market due to insurance and customs issues.
On the other hand, if you have the possibility to send us your defective unit from an invoice / delivery address in Germany or in another country of the EU, you are welcome to do so! Obviously, in this case, we have to ship back the tested / repaired unit to this address, too.
We really regret that and thank you for your comprehension!
Best Regards,
your ecu.de team
If you zoom in on the TPS trace using a GS911 it can reveal that the output is not a smooth line, it can have breaks in it if the wiper arm inside the TPS is worn. The rear face of the TPS spindle is also not 100% sealed and can allow water ingress.
I replaced my BMW item with a compatible Hella item, if you do a forum search you may find the threads that cover the tale with the Hella part number.
As for ecu.de, perhaps one of our forum members residing in France could help you with a workaround regarding all that customs/insurance/brexit trade agreement bollocks ??
I replaced my BMW item with a compatible Hella item, if you do a forum search you may find the threads that cover the tale with the Hella part number.
As for ecu.de, perhaps one of our forum members residing in France could help you with a workaround regarding all that customs/insurance/brexit trade agreement bollocks ??
Just an FYI, I may have contributed in the past with what I thought was a compatible HELLA part but when I received mine although the part looked identical and careful install the bike just revved to full throttle when started. I don't know if it was wrong part or out of box failure but I cleaned the old one and put it back.
Dugster
Registered user
I fell into that trap recently.
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