[EricRogers]

Got this code, and I want to change the O2 sensor at this location. But am getting slightly conflicting info.

I have narrowed it down to 2 part numbers for a 2013 Veloster Turbo.
39210-2B250 -> 2013-2015 Hyundai Veloster Oxygen Sensor 39210-2B250 | OEM Parts Online
39210-2B270 -> 2013-2015 Hyundai Veloster Oxygen Sensor 39210-2B270 | OEM Parts Online

Saw a video of this guy, appears to be a hyundai tech fixing a P0133 only CEL. ->

Is the location he shows in the video, indeed Bank 1 Sensor 1, and is B250 the proper part?

The reason for my confusion is that on the oempartsonline website above, b250 page says the position is rear. However I would assume? Maybe incorrectly, that the bank 1 position 1 sensor would be front and not rear? (b270 is listed as front on the site)

Anyone can clarify?

 

[trdtoy]

Different part number for each sensor. S1 is near the turbo and S2 is the rear sensor after the cats in the lower DP section.

 

[EricRogers]

Different part number for each sensor. S1 is near the turbo and S2 is the rear sensor after the cats in the lower DP section.

Hence the confusion of the OEM parts site, listing B270 as front, and B250 as rear.

However in the video, it's bank 1 sensor 1, and using B250. Which is in the front position?

 

[trdtoy]

It's an inline engine so only 1 bank of cylinders.

Sensor 1 is closest to the engine. Sensor 2 is the only other one after that.

Do not use a video to tell you what to buy. Just order through Albert Hwang on FB using your VIN. Or cross reference for the proper part number on oem parts sites.