Rear Oxygen Sensors

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10-28-2009, 10:02 AM
CHEVROLADE

Rear Oxygen Sensors

Since Mine Are Deleted,,can I Completely Remove Them And Plug The Y Pipe?or Do They Need To Stay Plugged In?if I Can Remove Them Completely What Size Plug Would Fit In Its Place?
10-28-2009, 10:24 AM
txarkitekt

Yes Zach, you can completely remove them. Tape up the connectors well and zip-tie them to the frame.
10-28-2009, 10:30 AM
little engine that could

x2 on removing them and them just plug the o2 bungs
10-28-2009, 10:31 AM
CHEVROLADE

damm!! alrite i should have removed them a long time ago,there probly no good by now.thanks...
10-28-2009, 10:43 AM
bangbangskeetskeet

Quote:

Originally Posted by txarkitekt

Yes Zach, you can completely remove them. Tape up the connectors well and zip-tie them to the frame.

Screw zit-ties. Just unplug them from the connectors. That's what I did on mine. :thumb:
10-28-2009, 10:47 AM
little engine that could

Quote:

Originally Posted by STUNNA

damm!! alrite i should have removed them a long time ago,there probly no good by now.thanks...

don't get me wrong zach i don't want to come off as a smart azz but what is it hurting by leaving them there.
10-28-2009, 10:50 AM
txarkitekt

Leaving them on there can mess with stuff. By leaving them on there (and even with them turned off) can mess with the grounding of the circuit. When you screw them into the exhaust bungs, you complete the ground circuit. If for any reason they touch the frame, it may throw things off a bit....since the electrical system on our trucks is ground-based.

I am not saying it WILL happen, but I have seen it happen 2 times on two different trucks with the rear O2s turned off in the tune.
10-28-2009, 10:55 AM
little engine that could

Quote:

Originally Posted by txarkitekt

Leaving them on there can mess with stuff. By leaving them on there (and even with them turned off) can mess with the grounding of the circuit. When you screw them into the exhaust bungs, you complete the ground circuit. If for any reason they touch the frame, it may throw things off a bit....since the electrical system on our trucks is ground-based.

I am not saying it WILL happen, but I have seen it happen 2 times on two different trucks with the rear O2s turned off in the tune.

wow good to know and i don't have mine in since the pacesetter ory doesn't have the bungs.
10-28-2009, 12:42 PM
CHEVROLADE

Quote:

Originally Posted by little engine that could

don't get me wrong zach i don't want to come off as a smart azz but what is it hurting by leaving them there.

well thing is bro i threw a 02 code and it was the passenger upper 02,,and all my 02s are the same i couldve just swapped 02s but its probly burnt,instead of buying a 140.00 new one.in other words i wouldve had 2 good spare 02s if i had removed them...

now knowing the info stated above,,they r really coming off,,,anyone know the plug thread size?
10-28-2009, 12:55 PM
txarkitekt

Quote:

Originally Posted by STUNNA

well thing is bro i threw a 02 code...

Zach threw a code because he had them plugged in, but not grounded (bolted to exhaust).

Quote:

Originally Posted by STUNNA

...anyone know the plug thread size?

Zach, I am almost positive the plug thread size is 18mmx1.5mm

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