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That's not true,they become "lazy" with age and mileage Posted by SWEDECAR [Email] ![]() ![]() ![]() In Reply to: I agree, O2 sensors do not "wear out"..., Dag, Thu, 22 Jul 2004 08:28:38 Members do not see ads below this line. - Help Keep This Site Online - Signup |
long before going so bad that it triggers the CEL.
Usually though with a good tuned engine they last for at least 100K miles or more.
Bad gas, slight coolant contamination or wrong carburettor cleaner can lower the efficiancy of the O2 sensor.
A lazy O2 sensor slows down the efficiancy of the catalytic converter and sometimes, a car can fail smog test with symptoms of a bad cat when in fact it only needs a new O2 sensor.
Bosch OEM sensor should be exactly the same quality as the Saab OEM with wires/connectors and everything so I don't know why some people have problem with them.
P/N 4660494, Bosch 13662 Front sensor
P/N 9147224, Bosch 13395 Rear sensor
Lately I have started to use a Bosch universal 4 wire sensor for some applications (which I said 2 years ago I didn't dare to do).
I have learned a lot more about the different sensors and as long as you use the right kind of 4 wire universal (it is several types out there) it seems to be working good.
Anders
posted by 67.122.16...
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