P0105 — Manifold Absolute Pressure/Barometric Pressure Sensor Circuit

What Does P0105 Mean?

P0105 is a diagnostic trouble code indicating: Manifold Absolute Pressure/Barometric Pressure Sensor Circuit. This code relates to the fuel and air metering system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P0105

⚠️ Check Engine Light (MIL) illuminated
⚠️ Erratic Manifold Absolute Pressure/Barometric Pressure Sensor readings
⚠️ Related system operating intermittently
⚠️ Poor fuel economy

Common Causes

🔍 Wiring issue in Manifold Absolute Pressure/Barometric Pressure Sensor circuit (damaged, chafed, or corroded)
🔍 Faulty Manifold Absolute Pressure/Barometric Pressure Sensor connector or terminal
🔍 Failed Manifold Absolute Pressure/Barometric Pressure Sensor
🔍 ECM/PCM connection issue

Frequently Asked Questions

What does P0105 mean?

P0105 indicates: Manifold Absolute Pressure/Barometric Pressure Sensor Circuit. The vehicle's computer has detected that the Manifold Absolute Pressure/Barometric Pressure Sensor is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P0105?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P0105 for extended periods may cause additional problems.

How much does it cost to fix P0105?

Repair costs for P0105 typically range from $80 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect and repair Manifold Absolute Pressure/Barometric Pressure Sensor wiring and connectors
🔧 Replace faulty Manifold Absolute Pressure/Barometric Pressure Sensor

1
Find your vehicle above
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P0105: Manifold Absolute Pressure/Barometric Pressure Sensor Circuit