Guys my car have 110000 miles now and Im about to replace water pump along with timing belt . The question it is worse it replace the O2 sensors ? They are not trowing any codes but i think it is important for the general performance of the vechicle . Also is that possible to clean the old ones ?Thanks in advance .

 

They cannot be cleaned and at $250 minimum, why would you replace it if it's still working? It's not something like the timing belt that's buried in the engine nor will it grenade your motor if it goes out.

This is very much a case of if it' ain't broke...

 

Mine were fine until I got to 230,000 miles on my 2000 TL. Never threw a code but gas mileage started to fall.

 

Ok, if you cant turn a wrench and or have the money not to want to, I see your $250 point but the part is $80.xx and takes about 15min to change if you have a jack, a jack stand, and a wrench.

I am no expert on o2 sensors but I understand that they can become unreliable with age and still not throw a code. They can go out at any time like anything else. Some last 40000 some last 230000

 

Agree 100 %

I did my own with univerasal ones and paid $65 each. Took about an hour since I soldered the wires together and installed an O2 simulator but still...

Oh and one of them went bad in 400 miles. Got a free replacement.

 

Oops. Didn't realize the CL was using the old style O2 sensors which are much cheaper but respond way slower. I'm not sure exactly what's changed but the newer cars use a different technology and are way more expensive, though a lot more accurate.

I still thinking your spending money where you don't need to. You're right about there being no need to spend the money having some one do it for you though.