Exam 76: Oxygen Sensors

A wide band oxygen sensor heater can draw how much current (amperes)?

A conventional oxygen sensor heater uses about ________ amps.

When the exhaust is rich, the PCM applies a ________ current into the pump cell (dual cell sensor).

When the concentration of oxygen on the exhaust side of the thimble is low (rich exhaust), a voltage of ________ is generated between the electrodes.

A wide band oxygen sensor can be made using what design?

An oxygen sensor is being tested with a digital multimeter using the MIN/MAX function. The readings are: minimum = 78 mV; maximum = 932 mV; average = 442 mV. Technician A says that the engine is operating normally. Technician B says that the oxygen sensor is skewed too rich. Which technician is correct?