Originally Posted by INFmstrTech

I would watch b2s2 and bank1s2 on your scantool (that’s the actual o2 sensor) from your post it looks like you’ve replaced the a/f sensor (b2s1). If you can graph both rear sensors and hold rpm steady at 2500, or have someone drive with you watching the line graph there should be even waveforms at steady rpm. If bank 2 o2 is switching to fast or slow compared to bank 1 I would suspect a bad o2 sensor causing the P2098 code. Very common for that to happen.