P0108 Subaru Code - Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Quick Answer
The P0108 code for Subaru vehicles indicates a problem with the Manifold Absolute Pressure (MAP) sensor or Barometric Pressure (BARO) sensor circuit, where the input signal is detected as higher than the normal range. Common causes include Faulty MAP/BARO sensor, Wiring or connector issues in the sensor circuit, Vacuum leak in the intake system. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0108 Subaru indicates Manifold Absolute Pressure/Barometric Pressure Circuit High Input.
- Common causes
- Common causes include Faulty MAP/BARO sensor, Wiring or connector issues in the sensor circuit, Vacuum leak in the intake system.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0108 Subaru Description
The P0108 code for Subaru vehicles indicates a problem with the Manifold Absolute Pressure (MAP) sensor or Barometric Pressure (BARO) sensor circuit, where the input signal is detected as higher than the normal range. The MAP sensor measures the pressure inside the intake manifold, which helps the engine control unit (ECU) to determine the fuel delivery and ignition timing. The BARO sensor, on the other hand, measures the atmospheric pressure outside the engine, providing the ECU with essential data for proper fuel mixture calculations.
Common Causes of P0108 Subaru
- Faulty MAP/BARO sensor
- Wiring or connector issues in the sensor circuit
- Vacuum leak in the intake system
- Clogged or dirty MAP sensor
- ECU malfunction
Symptoms of P0108 Subaru
- Check Engine Light illuminated
- Reduced fuel efficiency
- Engine hesitation or surging
- Rough idling
- Engine stalling
How to Fix P0108 Subaru
- Perform a visual inspection of the sensor and wiring for any visible damage.
- Check and clean the MAP sensor to ensure it is free from debris or dirt.
- Test the sensor's voltage output using a multimeter to determine if it is within specifications.
- Inspect the intake system for any vacuum leaks and repair as necessary.
- If the issue persists, consider replacing the MAP/BARO sensor or consulting a professional mechanic for further diagnosis.
Cost to Fix P0108 Subaru
The cost of repairing a P0108 code on a Subaru vehicle can vary depending on the specific cause of the issue. Replacement of the MAP/BARO sensor may cost between $100 and $300, while labor charges can range from $80 to $150 per hour. Additional costs for diagnostic tests, parts, and any necessary repairs should also be factored into the total expenses. It's recommended to obtain quotes from different auto repair shops to compare prices and ensure a fair estimate.
Need more information about the P0108 Subaru code?
Need more information on how to fix the P0108 Subaru code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0108 Subaru code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0108 Subaru Code
1. What are the common symptoms of OBDII code P0108 in a Subaru?
- Common symptoms include poor engine performance, decreased fuel efficiency, rough idling, stalling, and potential issues with acceleration.
2. What does the OBDII code P0108 in a Subaru indicate?
- The code P0108 indicates a high input signal from the Manifold Absolute Pressure (MAP) sensor or Barometric Pressure (BARO) sensor circuit.
3. What are the possible causes of OBDII code P0108 in a Subaru?
- Possible causes include a faulty MAP sensor, damaged wiring or connectors in the sensor circuit, a clogged or leaking intake manifold, or a problem with the engine's computer.
4. How can I diagnose the OBDII code P0108 in my Subaru?
- Diagnosis involves using an OBDII scanner to read the code, checking the sensor's voltage output, inspecting the sensor and its wiring for damage, and testing the intake manifold for leaks or blockages.
5. Can I drive my Subaru with the OBDII code P0108 present?
- It is not recommended to drive your Subaru with the code P0108 present, as it can lead to poor engine performance and potential damage over time. It is best to address the issue promptly.
6. How can I repair the OBDII code P0108 in my Subaru?
- Repair options include replacing the faulty MAP sensor, repairing damaged wiring or connectors, cleaning or replacing the intake manifold, or resetting the engine computer after fixing the issue.
7. Is it safe to reset the OBDII code P0108 in my Subaru without addressing the underlying problem?
- It is not recommended to simply reset the code without addressing the underlying issue, as the problem will likely resurface, leading to potential engine performance issues and decreased fuel efficiency.
8. Can a DIY enthusiast fix the OBDII code P0108 in a Subaru?
- Depending on the DIYer's skill level and access to tools, repairing the code P0108 may be feasible by following repair guides and using proper diagnostic equipment.
9. Will the OBDII code P0108 cause my Subaru to fail an emissions test?
- Yes, the code P0108 can cause your Subaru to fail an emissions test, as it indicates a problem with the vehicle's emissions control system that needs to be addressed for proper functioning.
10. How much does it typically cost to repair the OBDII code P0108 in a Subaru?
- The cost of repairing the code P0108 can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor.
Discuss the causes and fixes for P0108 Subaru OBDII Code
Code P0108 Subaru comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.