Australia » R1200RS

Bike generally runs very well. Back in December 2018 started the engine ok but when about to ride away the engine remained at idle even when trying to throttle up. Stopped, turned everything off and restarted. All was normal.
The dealer "recalibrated" the throttle system. All worked fine until today with engine not reving over idle again. Stopped turned off the ignition and restarted with engine warning indicated on the display. After serveal restarts the problem went away and got home safely.
Anyone had a similar problem, any adcive would be appreciated.

Regards

Beemer

Sound like it needs to go back to the dealer.

"Fly by wire" systems means that the throttle cable is connected to some sensor rather than anything directly connected to the fuel intake system.

It was a known issue on my last bike (GTR1400) that needed some "throttle position sensor reset" sequence involving ignition on (but engine not running), twist to full throttle twice, then ignition off.

I expect the RS has some similar kind of procedure that dealers don't want to tell us about.

Hope you get it sorted.

Cheers

Paul B.

Hi Paul

Thanks for your reply.

The dealer "recalibrated the system around last Christmas (bike still in warranty period).

I shall try your fix sequence and see how it goes.

Cheers

Felix

Hi Wessie

Thanks for the link to the RT problem, it provided some interesting scenarios. The altitude may be the issue ther but not in my case. less than 100m above sea leve.

The error code with the earlier "limp Mode" episode had an error code 3A13D0 - Throttle position, comparing error, raw value. Then there was a similar error code but with "adaptation value" rather than "raw value". This error code said the fault occurred 4 times. In all cases the "faut is not present now"

The error code yesterday was "3A1002 Exhaust flap servomotor, open circuit", this error occurred once. and is not present now.

I shall advise the dealer of the problem and get there on the next day or so.

Cheers

Felix

Zitat von Beemer im Beitrag #4

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Hi Paul

Thanks for your reply.

The dealer "recalibrated the system around last Christmas (bike still in warranty period).

I shall try your fix sequence and see how it goes.

Cheers

Felix

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Hi Paul

I will make an appointment with Dr BMW in the morning.

But your comments are well worth keeping in mind.

Regards

Felix

Hi Guys

Dr BMW had a look at the limp mode issue.

Apparently there is a mismatch between the throttle twist grip and the position of the throttle bodies. The dealer said that a 3% mismatch is the acceptable limit. However with all similar tests all results was a zero mismatch. My bike had a constant error greater then 3%.
The Dealer put in a request for a new twistgrip unit under warranty. BMW Australia agreed this is unusual and agreed to replace the twistgrip.

This was installed by the dealer on Monday 1st July 2019. All seems good at this stage. A good and fair result all round.

Will report further if ther are any issues.

Really appreciate tte forum help in this matter

Cheers