Is it safe to drive with a P0108 code?

Severity is medium. Address P0108 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 P0108?

Repair costs for P0108 typically range from $20 to $250 in the US, depending on the underlying cause. The most common fix is: Failed MAP sensor.

What are the symptoms of P0108?

CEL. Rich running. Black smoke. Rough idle.

Check Engine Code

P0108

Manifold Absolute Pressure (MAP) Sensor Circuit High Input

Severity: medium DIY difficulty: 2/5 Typical cost: $20–$250

What P0108 means

P0108 means MAP voltage is stuck high — usually a failed sensor or a wiring short. Can also be set if the sensor lost its vacuum reference (hose off).

Symptoms

CEL
Rich running
Black smoke
Rough idle

Likely causes (most common first)

Failed MAP sensor
Disconnected vacuum line to the sensor
Wiring short to 5V reference
Severe vacuum leak elsewhere

Can I keep driving?

Medium — drivable but fix soon

Typical repair cost

DIY fixes can start near $20 (parts only). Shop repairs for P0108 typically run up to $250 depending on the underlying cause and vehicle. Start with the most common cause — Failed MAP sensor — before throwing parts at it.

Related codes

P0106P0107

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