Actually, I think it was crankshaft RPM I saw measured. Might be worth popping the cover off then.
If this was an older oilhead, I'd be suspecting the ignition sensor or (more likely) the wiring to it.
Actually, I think it was crankshaft RPM I saw measured. Might be worth popping the cover off then.
I’ll bear that in mind Santa, Thanks. The original failure was with the bike running though.
I’ll do that if replacing the coils doesn’t work. Logically I suppose it should be done first but since both coils appear to have independent circuits from the computer there should be no single point of failure (famous last words)have you checked the loom particularly the coil circuits for rubbing/grounding that way ??
The ignition sensor was replaced by BMW as it was the cause of the last breakdown 6 weeks or so ago. I thought it was worth checking though so I had a look and did a quick cam alignment check whilst I was in there. In the first picture, the trigger assembly is removed to allow access to the cam bolt and a view of the sensor
I’ve got the tank and airbox off and had a good look at the coil looms as far as I can. Once they go across the top of the pot they go into a conduit and are well protected against chafing.
I see that there is an earthing module located on top of the engine and with the connector facing forward so I guess that’s the next port of call to have a look at and apply some contact cleaner.
Not surprisingly, changing the coil sticks didn’t solve the problem despite the error messages.
I also removed the CanSmart from the bus just in case it was causing issues, but it wasn’t.
Bike is now booked in to BMW a week on Monday. Running total so far is £1100 if I include the two new brake discs. Plus two buggered weekends and a lot of sunny days lost.
stop stabbing ffs diagnose the problem,completly unlikekly that both coils failed you should have sussed that really,wiring back to the zfe should have been checked first and then outputs from zfe,if you cant do that stop chucking money at it and get it diagnosed properly by someone with the know how and correct test equipment,windbag if the software wasnt right at time of download problem would have been evident straight away,
I’ve checked the continuity today and it’s all fine. ZFE sounds expensive.Have you tried the obvious?
Find the relevant coil plug pins in the ZFE plug and check them for continuity back to the coil plugs
No continuity, and ther's your answer
If youve replaced the coils and have the same fault its got to be either the ZFE or wiring
I’ve checked the continuity today and it’s all fine. ZFE sounds expensive.