HI there,
Bank 2 is the bank closest to the radiator on this. Closed loop usually means the O2 sensor heater is the problem or the engine is not getting hot enough to allow the sensor to into closed loop.
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Bank 2 is the bank closest to the radiator on this. Closed loop usually means the O2 sensor heater is the problem or the engine is not getting hot enough to allow the sensor to into closed loop.
More...