Oxygen Sensors -- change or wait for code

[kevinkay]

GREAT.....never gave that pulley a thought, now I can loose some sleep as I am at 186k with the original.

[wpoll]

Originally Posted by kevinkay

GREAT.....never gave that pulley a thought, now I can loose some sleep as I am at 186k with the original.

Sleep easy - it's only an issue on the diesels.

[AV8R4AA]

Preventative maintenance is ALWAYS cheaper than catastrophic maintenance.
Components wear down and fail. One could literally drive the car off the lot and never
raise the hood. Years could pass. Eventually the oil would fail, the air cleaner would clog, the MAF would
gum up,the oil filter would clog.
Yes, those are all items that need attention.
I don't wait for those items to fail. Keep on top of your vehicle and stay in the fast lane.

I come from the Aviation background, and failure in flight , is not an option.

[richardb]

I replaced two pre-cat sensors on my M54 3.0. The tool and two sensors were under $100 and took about 30 minutes. It did actually give me a small improvement in gas mileage. If the job was much more than $100 though I probably would have just waited for them to fail.