Question 1
When the concentration of oxygen on the exhaust side of the thimble is low (rich exhaust), a voltage of ________ is generated between the electrodes.
◦ 0.25-0.50
◦ 0.60-1.0
◦ 1.0-2.0
◦ 10-20
Question 2
When the exhaust is rich, the PCM applies a ________ current into the pump cell (dual cell sensor).
◦ Positive
◦ Negative
◦ Neutral
◦ None of these