MattP

I am trying to use Bosch 13444 and 13474 oxygen sensor for Sensor 1 Bank 1 & 2. 13444 is the correct 02 sensor for precat on a 99 Firebird, but the connector I have for bank 2 sensor 1 is for the rear cat on the Firebird. That is the 13474 connector. Does anyone know if these are functionally the same O2 sensors with different connectors or do they have different response characteristics entirely?

Thank you
Matt

98TA_vert

So you dont have use o2 extensions? I've been wondering if that would work also if thats what your trying to do.

350SS

iTrader: (38)

I asked a similar question, this is what I was told:
https://ls1tech.com/forums/pcm-diagnostics-tuning/444189-pre-cat-o2-s-vs-rear-o2-s.html
To my knowledge the front and rear sensors function the same, they just have different connectors. If you're doing a coversion which only requires the pre-cat sensors, I'm pretty sure you can use either part number but it they will have to be wired to the pcm in the position of the pre-cat sensors. The rear 02s are just to tell the PCM whether or not the cats are still working/in place.

Max