Technician A says that a heavy engine load results in high intake manifold vacuum and a high MAP sensor signal voltage. Technician B says that a manifold absolute pressure (MAP) sensor uses a perfect vacuum (zero absolute pressure) in the sensor to determine the pressure. Who is right?
A) Technician A only B) Technician B only
C) Both technicians A and B D) Neither technician A nor B
Question 2
Which of these can be used to measure the frequency (Hz) output of the sensor and compare the reading with specifications?
A) Megohmmeter B) DMM (digital multimeter)
C) High impedance test light D) Logic Probe
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