Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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MMPRINCE4000
AUTOMOTIVE REPAIR CONTRIBUTOR
8,548 POSTS
MAF (Mass Air Flow) measures the volume (Mass) of air going into engine and is critical in the PCM adding correct amount of fuel.
MAF used in conjunction with an oxygen sensor, the engine's air/fuel ratio can be controlled very accurately.