Is it safe to drive with a P0103 code?

Severity is medium. Address P0103 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 P0103?

Repair costs for P0103 typically range from $50 to $250 in the US, depending on the underlying cause. The most common fix is: Failed MAF sensor.

What are the symptoms of P0103?

CEL. Hesitation. Stalling. Black smoke if running rich.

Check Engine Code

P0103

Mass Air Flow (MAF) Sensor Circuit High Input

Severity: medium DIY difficulty: 1/5 Typical cost: $50–$250

Last updated April 30, 2026

What P0103 means

High-side counterpart to P0102 — the MAF is reading higher airflow than physically possible at the current operating point.

Symptoms

CEL
Hesitation
Stalling
Black smoke if running rich

Likely causes (most common first)

Failed MAF sensor
Wiring short to power
Restricted air filter (rare)
Bad ECM reference voltage

Can I keep driving?

Medium — drivable but fix soon

Typical repair cost

DIY fixes can start near $50 (parts only). Shop repairs for P0103 typically run up to $250 depending on the underlying cause and vehicle. Start with the most common cause — Failed MAF sensor — before throwing parts at it.