Advanced Engine Performance Exam With 100% Correct Answers | Already Passed| Graded A+

The sensor that must be warmed up and functioning before the engine management computer will go to closed loop is the _____ - O2S The voltage output of a zirconia oxygen sensor when the exhaust stream is lean (excess oxygen) is ____. - Relatively low (close to zero volts) Where is sensor 1, bank 1 located on a V-type engine? - On the same bank where number 1 cylinder is located In the exhaust system upstream of the catalytic converter A heated zirconia oxygen sensor will have how many wires - Three Four A high O2S voltage could be due to a ______ - Rich exhaust A low O2S voltage could be due to a _______ - Lean exhaust Defective spark plug wire An oxygen sensor is being tested with a DMM using the MIN/MAX function. The readings are min = 78 mV, max = 932 mV, and average = 442 mV. Tech A says that the engine is operating correctly. Tech B says that the oxygen sensor is skewed too rich. Who is correct? - Technician A only An oxygen sensor is being tested using a digital storage oscilloscope. A good oxygen sensor should display how many switches per second? - 1 to 5