Is it safe to drive with a P0102 code?

Severity is medium. Address P0102 sooner rather than later — driving with an active check engine light can worsen the problem or void emissions warranties.

How much does it cost to fix P0102?

Repair costs for P0102 typically range from $10 to $250 in the US, depending on the underlying cause. The most common fix is: Dirty MAF sensor element (clean, don't replace first).

What are the symptoms of P0102?

Check engine light. Rough idle, hesitation. Stalling. Drop in fuel economy. Sometimes paired with P0171.

Check Engine Code

P0102

Mass Air Flow (MAF) Sensor Circuit Low Input

Severity: medium DIY difficulty: 1/5 Typical cost: $10–$250

Last updated April 30, 2026

What P0102 means

The ECM is seeing an implausibly low MAF reading. Often a dirty sensor, a disconnected harness, or air leaking around the sensor (intake boot split between MAF and throttle body).

Symptoms

Check engine light
Rough idle, hesitation
Stalling
Drop in fuel economy
Sometimes paired with P0171

Likely causes (most common first)

Dirty MAF sensor element (clean, don't replace first)
Disconnected MAF connector
Vacuum/air leak between MAF and throttle body
Failed MAF
Wiring fault

Can I keep driving?

Medium — drivable but fix soon

Typical repair cost

DIY fixes can start near $10 (parts only). Shop repairs for P0102 typically run up to $250 depending on the underlying cause and vehicle. Start with the most common cause — Dirty MAF sensor element (clean, don't replace first) — before throwing parts at it.