is it possible to turn off rear o2s and disconnect them at harness?

[twistid]

Running long tubes front o2s only (rear o2s disconnected at harness) and currently getting p0141 and p0161. I called my tuner and he said he wasn't sure, he would try to delete the rear o2s but that even if they were removed I still needed to have them plugged in or else the ecu would possibly see a wiring fault.

I told him I cannot be the only person to only run front o2s on this car but he said he wasn't sure.

Does anyone have experience doing this?

 

[DSG2003Mach1]

mine are done like that right now and theres no problem...as long as theyre turned off in the tune it doesnt matter if theyre plugged in or not

 

[scott_0]

I cant imagine if theyre turned off, that theyd be an issue completely disconnected. try it and see man

 

[CPRsm]

Yep, we do it all the time

 

[scott_0]

^^ well there you have it, this gentleman offers a lot good information on this board, so Id say you can take it to the bank so to speak

 

[cb900f]

Running long tubes front o2s only (rear o2s disconnected at harness) and currently getting p0141 and p0161. I called my tuner and he said he wasn't sure, he would try to delete the rear o2s but that even if they were removed I still needed to have them plugged in or else the ecu would possibly see a wiring fault.

I told him I cannot be the only person to only run front o2s on this car but he said he wasn't sure.

Does anyone have experience doing this?

I tried it with mine, and it threw an engine code.

I'm guessing b/c mine is setup to pass emission testing? Not sure.

 

[03Steve]

Ive had exactly zero O2 sensors in my car for quite some time now. No P codes.

 

[04sleeper]

Works just fine.

 

[nosscort]

Yup mine are not in the car.. shaun from aed and adam from rev auto have mine turned off and I removed them completely and I have no issues

 

[allmotor65stang]

I tried it with mine, and it threw an engine code.

I'm guessing b/c mine is setup to pass emission testing? Not sure.

because there not turned off..or let me guess you have your cats on the car still??

 

[cb900f]

because there not turned off..or let me guess you have your cats on the car still??

Good try, but nope.

 

[JUIC3D]

There's a spot in the tune to tell tell the computer how many rear 02s are present. You just set it to NONE and you're good to go.