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Q: What is diagnostic code PO 0155 on 2001 Mazda B3000

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
engine check light is constantly on
(1) Answer
P0155 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)

Replace o2 sensor- drivers side right near manifold.