What makes a mass flow sensor go bad?

Contamination is a key reason why MAF sensors fail and require replacement. As air, dirt and other debris get into the sensor, the parts become contaminated and fail. Drivers often notice sluggish performance, rough idling, poor acceleration or even stalling. via

How do you know if your air intake is clogged?

Symptoms of a blocked air intake system:

Check engine light – If not enough air is entering your engine, the mass airflow sensor will detect the change and the check engine light may turn on. Misfiring engine – A blocked air intake can lead to overly rich air/fuel mixture. via

Can I clean a MAF sensor with electrical cleaner?

Electrical contact cleaner will be fine. Do not use carb cleaner or WD40! via

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