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i have a 98-base with 176k, have had a casper's o2-sim on it for 5 years. It failed once and they replaced it about 4 years ago I think.
Now I'm getting a CEL and codes: P0138 and P0136, both Bank 1 Sensor 2 trouble codes.
I'm starting to wonder if the o2 sim is failing again. The sensor itself is at least 5 years old and I never replaced it while I've owned the car. My stock cat is gutted.
Where can a new o2 sim be had?
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