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Engine-Codes – Honda – P1108 1999 Honda Civic

P1108 1999 Honda Civic Code - Barometric Pressure Sensor Circuit High Voltage

Quick Answer

The P1108 diagnostic trouble code (DTC) for a 1999 Honda Civic indicates a problem with the Barometric Pressure Sensor Circuit registering high voltage. Common causes include Faulty barometric pressure sensor, Damaged wiring or connectors in the sensor circuit, ECM malfunction. 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
P1108 1999 Honda Civic indicates Barometric Pressure Sensor Circuit High Voltage.
Common causes
Common causes include Faulty barometric pressure sensor, Damaged wiring or connectors in the sensor circuit, ECM malfunction.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code P1108 1999 Honda Civic Description

The P1108 diagnostic trouble code (DTC) for a 1999 Honda Civic indicates a problem with the Barometric Pressure Sensor Circuit registering high voltage. The barometric pressure sensor is a crucial component of the vehicle's engine management system, responsible for measuring the atmospheric pressure to help the engine control module (ECM) adjust fuel delivery and ignition timing for optimal performance. When the sensor detects a high voltage signal, it suggests that the atmospheric pressure reading is outside the normal range, potentially leading to incorrect fuel-air mixture ratios and ignition timing.

OBDII Code P1108 1999 Honda Civic - Barometric Pressure Sensor Circuit High Voltage
P1108 1999 Honda Civic Code - Barometric Pressure Sensor Circuit High Voltage

Common Causes of P1108 1999 Honda Civic

  1. Faulty barometric pressure sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. ECM malfunction
  4. Vacuum leaks in the intake system
  5. Incorrect barometric pressure reading due to environmental factors (e.g., high altitude)

Symptoms of P1108 1999 Honda Civic

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Hesitation or lack of power during acceleration
  4. Engine misfires
  5. Illumination of the check engine light

How to Fix P1108 1999 Honda Civic

  1. Begin by using an OBD-II scanner to confirm the P1108 code and identify the specific issue with the barometric pressure sensor circuit.
  2. Inspect the sensor, wiring, and connectors for any visible damage or corrosion. Replace any faulty components as needed.
  3. Test the barometric pressure sensor using a multimeter to ensure it is functioning within the manufacturer's specified parameters.
  4. Clear the DTC and reset the ECM to see if the code reappears after the repair. Take the vehicle for a test drive to verify that the symptoms have been resolved.
  5. If the issue persists, further diagnostics may be necessary to pinpoint the exact cause, such as checking for vacuum leaks or consulting a professional technician for advanced troubleshooting.

Cost to Fix P1108 1999 Honda Civic

The typical repair costs for addressing a P1108 code on a 1999 Honda Civic can vary depending on the specific cause of the issue. In general, replacing a faulty barometric pressure sensor or repairing damaged wiring may cost between $100 and $300, including parts and labor. However, if the ECM needs to be replaced or additional diagnostics are required, the total repair cost could range from $200 to $500 or more. It's important to note that diagnosis time and labor rates at auto repair shops can fluctuate based on various factors, so it's recommended to obtain quotes from multiple sources for an accurate estimate.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1108 1999 Honda Civic Code

1. What are the common symptoms of OBDII code P1108 in a 1999 Honda Civic?

The common symptoms of OBDII code P1108 in a 1999 Honda Civic include rough idling, poor fuel efficiency, and potential engine stalling.

2. What does the OBDII code P1108 on a 1999 Honda Civic indicate?

OBDII code P1108 on a 1999 Honda Civic indicates a high voltage in the barometric pressure sensor circuit.

3. What are the potential causes of OBDII code P1108 in a 1999 Honda Civic?

Potential causes of OBDII code P1108 in a 1999 Honda Civic include a faulty barometric pressure sensor, damaged wiring or connectors in the sensor circuit, or a problem with the Engine Control Module (ECM).

4. How can I diagnose the OBDII code P1108 in my 1999 Honda Civic?

Diagnosing OBDII code P1108 in a 1999 Honda Civic involves using an OBDII scanner to read the code, checking the barometric pressure sensor and related wiring for any visible damage, and conducting voltage tests to pinpoint the issue.

5. Can I still drive my 1999 Honda Civic with OBDII code P1108?

It is not recommended to drive your 1999 Honda Civic with OBDII code P1108, as it can lead to further damage to the engine and potentially unsafe driving conditions.

6. How can I repair OBDII code P1108 in my 1999 Honda Civic?

To repair OBDII code P1108 in a 1999 Honda Civic, you may need to replace the barometric pressure sensor, repair any damaged wiring or connectors, or reprogram the Engine Control Module (ECM) if necessary.

7. Is it possible to reset OBDII code P1108 in a 1999 Honda Civic without fixing the underlying issue?

Resetting OBDII code P1108 in a 1999 Honda Civic without fixing the underlying issue will only temporarily clear the code, and the problem will likely reoccur.

8. How much does it typically cost to repair OBDII code P1108 in a 1999 Honda Civic?

The cost to repair OBDII code P1108 in a 1999 Honda Civic can vary depending on the extent of the issue, but it may range from $100 to $300 for parts and labor.

9. Can a DIY enthusiast fix OBDII code P1108 in a 1999 Honda Civic?

A DIY enthusiast with the necessary tools and knowledge may be able to fix OBDII code P1108 in a 1999 Honda Civic by following a repair manual or online guides, but professional help is recommended for accurate diagnosis and repair.

10. Are there any preventive measures to avoid OBDII code P1108 in a 1999 Honda Civic?

Regular maintenance, such as checking and replacing sensors as needed, keeping the engine in good condition, and avoiding rough driving, can help prevent OBDII code P1108 in a 1999 Honda Civic.

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