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Q: misfire / engine cutting off on 1999 Pontiac Bonneville

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
how do you test or check the crankshaft position sensor and mass air flow sensor
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I would think that if there were problems with the crankshaft position (CKP) sensor or airflow (MAF) sensor then the check engine light would come on with diagnostic codes relating to the CKP or MAF.
The CKP outputs a 5 volt square wave signal, you could see that on a graphing meter, the MAF outputs a frequency that varies with airflow which you could see on a graphing meter or a meter that reads frequency.
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