I need someone to verify the O2 sensor voltage readings on a 2009-2011 2.2 L.

At idle after warm up what is the #2 sensor reading? Also, what is it engine off ignition on? And the peak #1 sensor reading?

I'm trying to figure out if mine is faulty or if I really do need a new cat.

Any experiences with the Made in Canada cats as seen on Ebay for $189?

 

My concern here is that I have replaced both O2 sensors, the #2 twice. The cheap #2 sensor was causing a "stuck lean" code, the NGK is now causing a P0420. But I have a cheap #1 installed.

#1 peaks at about .800 Volts and #2 (NGK) reads about .75 Volts, the cheap #2 read about .2 Volts.


I need baseline numbers from a healthy 2.2L HHR. I know I probably need a new cat, but I want to be sure what caused the failure.

 

Come on, I seem to remember a lot of talk about people getting Bluetooth OBD readers.

 

Would love to help you out, but I have an SS.

I have the torque app with the Bluetooth wireless reader. Can I get those readings with this?
Remember donbrew, I'm a computer dummy, so be nice with your answer.

 

Maybe with paid version. If you have android ScanMaster Lite is available at PlayStore for free, it will.

 

Don I can vouch for the cat off E-bay, I put one on after the flex pipe broke back in April, fit prefect, no rattles code issues, I still have my factory O2 sensors in my '07
so I don't know if those numbers would help, and I don't have an OBDII reader

 

Correction: I can't find an app for the android that does it.