k.... i clear my CEL twice 2 weeks in a row already....same code bank 1 sensor 2 slow react, and high something something can't remember.... i think i f**k it up... my friend told me if the O2 is gone the engine will run either too lean or too rich..... so it will either eat lots gas or you might get better milage... is that true?
1.my question is if i don't fix it will it f**k up my other O2?

2.or i can just ignore the CEL and keep drivin it if it saves gas?

3.how much will it cost get a new sensor?
i only has 37XXX on my car... i think i f**k it up because i put 2 bottle of Tectron injector cleaner on my tank...><
guys.... help...

 

the cell is on for a reason. Fix it.

I think the cheapest o2 sensor in our car is 98 dollars.


And try using "f**k" a few more times. It really gets your point across.

 

THIS is the best place I have seen so far.

 

typically when the a primary goes bad, the ecu will richen the mix not lean it out. it knows running rich is safer than lean at the sacrifice of fuel mileage.