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Registered
Join Date: Oct 2001
Location: Cleveland, Ohio
Posts: 500
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Is the O2 Sensor necessary?
My mechanic, Eric Steinel, said the O2 sensor is not needed for cars (SC's and 3.2 Carrera's) running without a cat. He said the O2 sensor is only there to richen the mixture slightly then lean it out to "ignite" the cat. However on later cars (964 & newer) he said the sensor plays a role in determining the mixture.
My concern is that if I run without the O2 sensor, the car will run rich and therefore increase the likelihood of premature valve guide wear. Any thoughts?
Pete Brown
'87 Coupe
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