Oxygen Sensors on 1991 Toyota Celica

Does my car have the Federal approved oxygen sensors or California sensors. Can I use the Federal approved oxygen sensors on my car I live in California

by in Alhambra, CA on May 23, 2011
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2 answers
ANSWER by , May 23, 2011
the car has to have California certified emissions label under the hood. if it does, then use California o2 sensors. if not, use federal sensor. they cannot be interchanged. Roy
ANSWER by , May 23, 2011
The emission decal under the hood of your car will state where the your car meets Federal or California emissions standards, the O2 sensor that year is the same I believe. Look at www.rockauto.com and compare the part numbers to see if they are the same.