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ASEMaster35yrs, Pontiac Technician
Category: Pontiac
Satisfied Customers: 2095
Experience:  ASE Certified since 1972,Master Auto tech,Heavy Truck,4 years pontiac dealer Tech
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symptoms of a bad Mass airflow Sensor on a 2000 Grand Prix?

Resolved Question:

What are the symptoms of a bad Mass Airflow Sensor on a 2000 Grand Prix?
Submitted: 5 years ago.
Category: Pontiac
Expert:  ASEMaster35yrs replied 5 years ago.

Glad to be of help. Don't replace a part without testing it to be sure it's bad. The MAF sensor is not cheap! The same symptoms could be caused by something else.

Symptoms include Lack of Power. It's as if there were a time
lag between when the accelerator pedal is depressed and engine reaction. These
may also include low gas mileage, shuddering, stalling, knocking or pinging.
Other common automobile problems can also cause these symptoms, so they don't
specifically indicate MAF failure.

Here are some videos for testing and cleaning, as well as links listing the symptoms.

Testing MAF sensor


Cleaning MAF Sensor


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