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  1. P2A00 - changed o2 sensor...still gets code

    Range Rover Mark III / L322
    Hello. I had the p2a00 code, so I changed the o2 sensor with a Bosch one. I changed the sensor before the cat, on the left side (if facing the suv....US passenger side). The code came back in later. Any ideas what to check next?
  2. 2005 HSE Engine light. P2a00 and P2a03

    Range Rover Mark III / L322
    I bought an 05 RR and after one month the engine light came on. I took it back to the dealer and he replaced the 2 front o2 sensors. The next day the light came back on so I went back to the dealer and he swapped them with a new set, thinking that the original new o2 sensors may be faulty.I pick...