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Discussion Starter · #1 ·
Pilot Touring 170k miles. Lot of in town short drives carpool lines with 2 to 3 long 800 mile trips per year.
CEL on. Changed both O2 sensors as they had these codes. Cleared codes. Driven around 400 miles. CEL back on with p0138 141 and 161.
Is it possible to have purchased two bad O2 sensors?
Is it possible the wiring leading up to the O2 sensor could have a short? Any idea how to check it?
Should I have changed the cat as well?

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