I understand that I can mount Tuner's WB O2 sensor to stock "rear" O2 sensor location if I'm running test pipe/catless. But what do I do with the stock O2 sensor? How do I secure it safely after remove it from the stock location?

 

Hello,

We actually ship them with an extra 02 bung you can weld on. Or you can just remove your rear 02 sensor all together then install it into that bung.

Thanks,
Jermaine~
www.turboxs.com

 

Does the UTEC simulate the rear O2 sensor voltage to the ECU if you disconnect the stock rear O2 sensor?

 

The Tuner has a 1v output, but we currently have not tested using it to simulate the 1v rear 02 sensor.

-Nathan
www.turboxs.com

 

Ya might want to consider an O2 simulator output function in your next UTEC Firmware update.. this way you don't have to disable the CEL light completely.. In reality you just need to reduce the voltage that the primary O2 sensor sees and output that to the secondary output. (in theory)

 

I realized that this thread got off-topic.. For what its worth, have the bung welded into your downpipe as close to the stock O2 housing as possible.. The further away from the turbo the more likely you may not get as accurate a reading as you can..

Plus removing the secondary O2 sensor will result in your CEL Light being on all the time unless you wire in an O2 simulator.

Of course for those running a cat.. you won't get good readings regardless after the Cat.. so its not something us "Green guys" can even entertain..