Well, a Mass airflow sensor will not cause a no-spark concern. And the chances of two sensors going south at the same time, slim. The ecm controls the firing of the coils. Make sure your inputs to the ecm are good especially batt. and ground. Check to see if you are getting anything to the coils: volts, signal, ground. Then check your ecm, make sure no water damage from a/c, or bad motor mount smoked it. Yes, a bad motor mount if it is electric, and it shorts out internally can fry an ecm