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P2A00 Diagnostic Trouble Code Discussion for May 2010

Air Fuel Sensor (Bank 1 Sensor 1) Circuit Range / Performance

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Trouble Ticket Help Requests for DTC P2A00
Help Request Posted
2005 Land Rover Range Rover HSE 4.4L MIL Lamp on VIN: SALME11616
P2A00: O2 control performance bank 1 upstream 1. The truck came with codes for Thermostat (Hard code), O2 sensors (2 front and 1 rear). I send the customer to Range rover for warranty over craked catalitics. They replace both the same day. Then I replace the thermostat, The truck came back with codes for bot...
May 24, 2010