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  1. O2 sensor stuck lean, replaced, then rich.

    4.3 Mechanical
    Hello all, I’m new to RAV4world, so please forgive any errors. I have a 2007 RAV4 V6 with 147k miles. Recently the engine, VSC, and TCS warning lights came on and the codes P2195 (S1B1 lean) and P0138 (S1B2 high) came up. I purchased two new sensors (Not denso, probably the culprit) and...