Dummy O2 Sensor

[Dcrazys]

hi, I have 2003 Chery Tahoe LT 5.3L flex fuel. and I need help to find Dummy O2 Sensor does anyone know where I can find them and the right part #?

Thank you.

 

[OR VietVet]

Why?

 

[Dcrazys]

Why?

I'm not going to replace catalytic converter.

 

[OR VietVet]

Then just use the existing one and disable it, if you have to.

 

[Dcrazys]

Then just use the existing one and disable it, if you have to.

02 OXYGEN SENSOR EXTENSION HARNESS? you know link for it like eBay or amazon or whatever link you have and how about YouTube explain me better? i was looking for what it call space? here link https://mechanicbase.com/engine/how-to-bypass-o2-sensors/#How to Bypass Oxygen Sensors?

 

[Fless]

Have them tuned out.

 

[Scottydoggs]

you have 4 o2's. the pre cats, aka up stream. you need them. if you need them harnesses find em and use them. o2's help control your fueling. the down stream o2's can be tuned out with a tuner, or you can try faking out the system by putting them in spark plug anti foulers, you need two per o2, drill one out, put the o2 in that one. then screw the other one to the bottom and into the exhaust pipe. this pulls the o2 out of the exhaust stream enough for it to not figure out theres no cat.

 

[Dcrazys]

you have 4 o2's. the pre cats, aka up stream. you need them. if you need them harnesses find em and use them. o2's help control your fueling. the down stream o2's can be tuned out with a tuner, or you can try faking out the system by putting them in spark plug anti foulers, you need two per o2, drill one out, put the o2 in that one. then screw the other one to the bottom and into the exhaust pipe. this pulls the o2 out of the exhaust stream enough for it to not figure out theres no cat.

thank you so much