Known Good Air Flow and AF Sensor Readings

Scott Owner/Technician Claremont, California Posted  
Resource
Driveability
2019 Nissan Frontier S 4.0L (VQ40DE Flex) 5-spd (FS5R30A)—1N6AD0ER8KN878780

Here are a few images showing known good AFR sensor voltage levels at stoic, minus 20% fuel and + 20% fuel along with normal Airflow numbers.

Minus 20% AFR

Stoic AF

+ 20% AFR

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