The MAF sensor on a General Motors 3800 V-6 is being tested for contamination. Technician says that the sensor should show over 100 grams per second on a scan tool display when the accelerator is depressed to WOT (wide open throttle) on a running engine. Technician B says that the output frequency should exceed 7000 Hz when the accelerator pedal is depressed to WOT on a running engine. Who is
right?
A) Technician A only B) Technician B only
C) Both technicians A and B D) Neither technician A nor B
C
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What will be an ideal response?
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What will be an ideal response?
If the fault code indicates both CAN B (+) and CAN B (-) circuits are low or high, this means that a ____ has occurred.
A. limited bus interruption B. sequential buss failure C. partial bus failure D. total bus failure
Can zeotropes be metered in with the unit operating?
A) No, if an early R-410A cylinder with a dip tube is being used. B) Yes, only if the temperature exposure of the cylinder is above 125°F. C) Yes, by slightly cracking open the low-side manifold valve and then closing it. D) No, as the system must be turned off first.