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Front O2 sensor and A/F sensor same?

3K views 4 replies 3 participants last post by  christenayuca 
#1 ·
Are front O2 sensor and A/F sensor two different sensors or are they the same sensor before the cat?
 
#5 ·
i had to buy the front set of sensors because i lost them while i was putting on my jbs's and the ppl at auto zone gave me the ones to the rear and i thought they where the same but they did not fit nore did they look the same ...so no they are NOT the same
 
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