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P0102 Mass Air Flow (MAF) Sensor Circuit Low

What it means

The MAF sensor signal is lower than expected, often a wiring, connector, or sensor failure.

Severity: Moderate

Can I drive it? Drivable with caution; may run rough or stall.

Common causes (most likely first)

Dirty or failed MAF sensor
Damaged wiring or loose connector
Intake air leak

Likely fixes

Check connector and wiring
Clean MAF sensor
Replace MAF sensor

DIY parts cost

$10–$250

Approximate estimate

Shop repair cost

$100–$450

Approximate estimate, parts + labor

DIY difficulty

Easy

Varies by vehicle

Cost ranges are rough, approximate U.S. estimates and vary widely by vehicle, region, and parts brand. Always confirm the diagnosis before buying parts.

Parts you may need

MAF sensor cleanerCheck price
MAF sensorCheck price

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