O2 Sensor Change A Good Idea?

[Mr Bill]

My 96 ES300 has just over 100k miles. Despite a high reading (50 out of a max of 51 ppm hydrocarbons) 2 years ago, it just passed a smog check again today.

Given that to change the 3 O2 sensors is something like $400 or more, should I go ahead and change them to protect the catalytic, or just wait until I get a CEL??

Thanks to those who responded to my other O2 sensor question on resetting the ECM.

Thank you

Bill

[SKperformance]

If the actual o2 sensors readingas are normal when hot then don;t change them you are only wasting money

get a motorvac done and clean all of tehm including the cat

[Mr Bill]

that makes sense - but I have a question - what is a "motorvac" ?? I have never heard of that.

[SKperformance]

A high pressure fuel rail treatment

it uses a machine and the gas tank is shut off and it runs off the machine with higher pressure nad a solution

it cleans the crap out of the engines rails valves intake exhaust manifolds cat and exhuast as well as the combustion chamber.

For about $100 it will 100% make the car dirve like a whole new one

totally different froma basic fuel aditive.

[jbrubaker]

How often would you have this done? (The motorvac)

[SKperformance]

atleast once every 2 years

or a week or so before an emmision test if needed in your area as it is almost a guarnteed pass after