Engine light came on, bike went into limp mode

VVs1krr · May 16, 2021

I have a 2017 s1000rr, it has a full akrapovic exhaust, no tune. Both servos were removed and replaced with servo buddies. Bike was running and riding beautifully for awhile now, then all of a sudden the engine light came on and the bike went into limp mode. Engine sounded like it was running great but it wouldn't allow me to rev over 3k. I'm thinking maybe o2 sensors, any help is greatly appreciated. Thank you

BMW_388 · May 16, 2021

You need a GS911 to at least tell us the codes.

If you want me to guess at it, a possible issue is the twist throttle and a simple adaptation reset with the GS911 might fix it.

AussieAlien · May 20, 2021

At a guess, because you've put a full system on without a tune, the long-term fuel trim is out of acceptable adaption range and caused the DME/ECU to go into limp mode.

As @BMW_388 said, a GS911 will help you to get the fault codes and determine the appropriate course of action.

Engine light came on, bike went into limp mode

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