Volvo Land Rover Error Code P1108: How to Fix It

Easy 30-60 minutes Low Severity Verified June 2026
Error Code
P1108
Brand
Volvo Land Rover
Product Type
automotive
Severity
Low
DIY Difficulty
Easy
Estimated Fix Time
30-60 minutes
Error code P1108 indicates that the Barometric Pressure (BARO) sensor circuit is sending a high voltage signal to the engine control module. This can cause minor performance issues or trigger the check engine light. The problem is often due to a faulty sensor, wiring issues, or a vacuum leak.
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Tools You'll Need

How to Fix Error Code P1108

  1. Check for Common Causes

    Let the engine cool before working near hot components.
  2. Clear the Error Code and Test

  3. Test the BARO Sensor Voltage

    Be careful not to short the sensor wires; use proper probing techniques.
  4. Inspect Wiring and Connector

    Disconnect the battery before repairing wiring.
  5. Replace the BARO Sensor if Faulty

    Ensure the replacement sensor matches your vehicle's OEM specifications.

Parts You May Need

Barometric Pressure (BARO) Sensor
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Electrical connectors/pins
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Barometric Pressure (BARO) Sensor
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Electrical connectors/pins
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Barometric Pressure (BARO) Sensor
Check Price on Amazon
Electrical connectors/pins
Check Price on Amazon
Barometric Pressure (BARO) Sensor
Check Price on Amazon
Electrical connectors/pins
Check Price on Amazon
Barometric Pressure (BARO) Sensor
Check Price on Amazon
Electrical connectors/pins
Check Price on Amazon
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When to Call a Professional

If you've replaced the sensor and checked wiring but the code persists, the issue may be in the ECM or a deeper vacuum leak. A professional mechanic can perform advanced diagnostics and software updates.

Frequently Asked Questions

Can I drive with error code P1108?
Yes, this is a low-severity code. You can drive, but you may notice reduced fuel economy or minor performance issues. It's best to fix it soon to avoid further problems.
Where is the BARO sensor located on Volvo Land Rover?
The BARO sensor is typically mounted on the intake manifold or near the air filter box. Consult your vehicle's repair manual for exact location.
Will a vacuum leak cause P1108?
Yes, a vacuum leak can cause incorrect pressure readings and trigger P1108. Inspect vacuum hoses, intake gaskets, and the PCV system for leaks.
How much does it cost to fix P1108?
DIY cost is about $30-$80 for a new BARO sensor. Professional repair may include diagnostic fees ($100-$200) plus labor and part markup.
Can a bad MAP sensor cause P1108?
P1108 is specific to the BARO sensor, not the MAP sensor. However, both share similar wiring and could be affected by the same harness issue.