Mass airflow sensor

Part of Engine sensors · about $190 to replace

What it is

Hot-film MAF in the intake duct.

What it does

Measures the mass of air entering so fuelling can match it.

How it fails

Oil mist from a bad filter skews readings lean; clean with MAF spray only.

Material	Platinum hot film on ceramic
Spec	0–1,400 kg/h
	5 V output

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