check engine light stays on, on my 2017

[itstuantran_imp]

To what i've experienced with my CB1100 RS after 46,000km, there would be many reasons for the check engine light to be kicked in.
The most potential reason is from malfunctioned O2 sensor. I had the left one died before having bazzaz ZFI hooked in as part of exhaust system upgrade.
Intermittently, i did have the check engine light illuminated (constant on, not blinking) and went off itself automatically after couple hundred km (after bazzaz installation), other than that, it's all been running normally for over 30,000km so far. Dont just erase the faulty code as it will come back again if not knowing where the root cause is.
I have read different reference sources for check engine light to be kicked on:
- It's could be misfiring due to bad spark plug that will trigger the MIL or
- bad fuel gauge would also be a culprit.
- One of the sensors malfunction could turn the lights on (could be the ABS sensor not reading properly, need cleaning...)
- loose or not well contacted grounding (for PCV or bazzaz installation) could possibly turn the light on.
- Bad contact from kill switch could also turn the light on

...
The best thing is to get it diagnosed by professional mechanic with a error scanning device, it will tell exactly what the error code is.

Gook luck

Remove the negative battery conntection, and let the bike sit overnight.

Did this and it did NOT remove the error code , no problem , my dealer will take care of this.

Did this and it did NOT remove the error code , no problem , my dealer will take care of this.