Cool 2019 Duramax Check Engine Light Maf Sensor 2023. Poor replacement one of the most common causes of check engine popping up after maf sensor replacement is having a faulty replacement. At 205 miles we got a check engin light.
If a sensor sends an incorrect signal, the ecm or pcm will turn on the check engine indicator light. Web engine idling, observe the scan tool maf sensor parameter. It means that for each unit to fuel, 14.7 equivalent units of air are needed for perfect combustion.
