Oxygen Sensor Question

[bl9366]

Boyz,

I have an 89 carbureted 3geez and she's got bout 205000 km. The oxygen sensor has never been replaced. Will replacing it make a notable difference in emission testing (amounts of CO, NOx, HC)?

Thanks guys.

[snow_man_20]

i would think so, if thay have 200k on them (there is two of them on FI, don't know about CARB), i'm surprized thay even work if thay are working right, i would say change them if you have to have emission tests.

[Oldblueaccord]

i would think so, if thay have 200k on them (there is two of them on FI, don't know about CARB), i'm surprized thay even work if thay are working right, i would say change them if you have to have emission tests.

used to be able to clean them off with a propane torch if your broke.

wp

[snow_man_20]

used to be able to clean them off with a propane torch if your broke.

wp

i have heard you can do that but never tried it. It just burns the carbon off doesn't it? Makes sense.