[BKV122]

I think it might be the blue paint where the sensor should slip in, because when i did my front pads with oem pads the new sensor went right in with no problems but my CC pads for my rear i ended up breaking one sensor, so i zip tied another sensor up and away. Couldn't even get the sensor close to getting into place.

I say just zip tie it, or take the one pad out and try filing the paint off where the sensor would go