Question

A maf sensor on a general motors 3800 v-6 is being tested for contamination. technician a says that the sensor should read about 100 g per second on a scan tool display when the accelerator is depressed to wot on a running engine. technician b says that the output frequency should exceed 7,000 hz when the accelerator pedal is depressed to wot on a running engine. which technician is correct?

a. technician a only
b. technician b only
c. both technicians a and b
d. neither technician a nor b

Answer 1

The correct answer is option D. Neither technician A nor B.

Step-by-step explanation:

The correct answer is option D. Neither technician A nor B. Technician A is incorrect because a properly functioning Mass Air Flow (MAF) sensor on a General Motors 3800 V-6 engine should read about 5-7 grams per second on a scan tool display when the accelerator is depressed to Wide Open Throttle (WOT) on a running engine.

Technician B is also incorrect. The output frequency of a MAF sensor is typically measured in Hertz (Hz.) and ranges from 30-150 Hz at idle and can go up to 1000-3000 Hz at WOT. The output frequency exceeding 7,000 Hz would indicate a faulty sensor.

It is important to refer to the manufacturer's specifications for the specific engine and model to ensure accurate testing and diagnosis of a MAF sensor.

Technician A is incorrect because a properly functioning MAF sensor on a General Motors 3800 V-6 engine should read about 5-7 grams per second on a scan tool display when the accelerator is depressed to WOT on a running engine. Technician B is also incorrect because the output frequency should not exceed 7,000 Hz.