777Shock777

iTrader: (5)

Hey everyone,

I'm looking to get LT 7/8 TSP Headers, but the real question I have is, how do the rear o2 sensors come into play?

I'm getting an ORY so CATS will be gone. I have read a lot of conflicting information on how the rear o2s function through multiple threads (things like it effects everything but WOT, it doesn't effect the car at all, etc.)

Is it better to get rear o2s tuned out? Get o2 simulators?
What would YOU do?

dr_whigham

iTrader: (49)

Tune them out. There's no need for them. All they are is a tattle-tail that the cats are doing their job.

The fronts are where the WOT tuning comes into play.

**Disregard that last statement. Apparently I have had too many already this morning**

AmarilloWS6

iTrader: (3)

I just ripped them out and had them tuned out. I keep them for spares incase the fronts ever go bad.

SweetS10V8

iTrader: (4)

Correct on the rears....

Incorrect on the fronts, At WOT the car goes into open loop and the oxygen sensors arent used. This is where tuning and widebands come into play. Although the front oxygen sensors are used for A/F corrections at almost everyother time the vehicle is running, except WOT.

777Shock777

iTrader: (5)

So just get em tuned out huh?
Are o2 sims even worth it then?

redtan

iTrader: (5)

Rears won't work as replacements for the fronts, completely different sensor.

OP, yes get them tuned out.

BIG_MIKE2005

iTrader: (116)

I'm running the Bosch Vette rear O2's without a single problem. And I got to ditch my O2 extensions too cause the stock harness on the new sensors was plenty long enough with my LT's.

100% correct

Darkman

iTrader: (2)

https://ls1tech.com/forums/13969706-post10.html
https://ls1tech.com/forums/generatio...t-vs-rear.html
https://ls1tech.com/forums/pcm-diagn...hangeable.html
https://ls1tech.com/forums/general-m...2-sensors.html
https://ls1tech.com/forums/generatio...-both-o2s.html
https://ls1tech.com/forums/13969706-post10.html