AutoCodes – Honda – P0108 Honda

P0108 Honda Code - Manifold Absolute Pressure Sensor Circuit High Voltage

Quick Answer

The Manifold Absolute Pressure (MAP) Sensor measures the pressure or vacuum in the manifold. Common causes include Faulty Manifold Absolute Pressure (MAP) Sensor, Manifold Absolute Pressure Sensor harness is open or shorted, Manifold Absolute Pressure Sensor circuit poor electrical connection. 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 Honda indicates Manifold Absolute Pressure Sensor Circuit High Voltage.
Common causes: Common causes include Faulty Manifold Absolute Pressure (MAP) Sensor, Manifold Absolute Pressure Sensor harness is open or shorted, Manifold Absolute Pressure Sensor circuit poor electrical connection.
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.

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Code Popularity 112,550

How popular is this code, among other codes? Medium

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 31, 2023

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0108 Honda Description

The Manifold Absolute Pressure (MAP) Sensor measures the pressure or vacuum in the manifold. This measurement is converted into an electrical signal which the Powertrain Control Module (PCM) uses to monitor the engine. The MAP Sensor outputs low signal voltage at high vacuum (throttle valve closed) and high signal voltage at low vacuum (throttle valve wide open). If the signal voltage from the MAP sensor falls below or exceeds a set value for a specified time, the PCM detects a malfunction and stores a Diagnostic Trouble Code (DTC).

OBDII Code P0108 Honda - Manifold Absolute Pressure Sensor Circuit High Voltage - AutoCodes.com — P0108 Honda Code - Manifold Absolute Pressure Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0108 Honda?

Faulty Manifold Absolute Pressure (MAP) Sensor
Manifold Absolute Pressure Sensor harness is open or shorted
Manifold Absolute Pressure Sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0108 Honda?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0108 Honda code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Information for Specific Honda Models

P0108 2008 Honda Accord — Manifold Absolute Pressure Sensor Circuit High Voltage
P0108 2009 Honda Accord — Manifold Absolute Pressure Sensor Circuit High Voltage
P0108 2010 Honda Accord — Manifold Absolute Pressure Sensor Circuit High Voltage
P0108 1996 Honda Civic — Manifold Absolute Pressure Sensor Circuit High Voltage
P0108 1997 Honda Civic — Manifold Absolute Pressure Sensor Circuit High Voltage
P0108 1998 Honda Civic — Manifold Absolute Pressure Sensor Circuit High Voltage
P0108 1999 Honda Civic — Manifold Absolute Pressure Sensor Circuit High Voltage
P0108 2000 Honda Civic — Manifold Absolute Pressure Sensor Circuit High Voltage
P0108 2016 Honda CR-V — Manifold Absolute Pressure Sensor Circuit High Voltage
P0108 2017 Honda CR-V — Manifold Absolute Pressure Sensor Circuit High Voltage
P0108 2018 Honda CR-V — Manifold Absolute Pressure Sensor Circuit High Voltage
P0108 2019 Honda CR-V — Manifold Absolute Pressure Sensor Circuit High Voltage
P0108 2020 Honda CR-V — Manifold Absolute Pressure Sensor Circuit High Voltage
P0108 2021 Honda CR-V — Manifold Absolute Pressure Sensor Circuit High Voltage

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 P0108 Honda Code

1. What are the common symptoms of OBDII code P0108 in a Honda related to the Manifold Absolute Pressure (MAP) sensor circuit high voltage?

The common symptoms include poor engine performance, rough idling, stalling, reduced fuel efficiency, and illuminated Check Engine Light.

2. What are the possible causes of OBDII code P0108 in a Honda?

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 control module (ECM).

3. How can I diagnose the issue related to OBDII code P0108 in my Honda?

You can diagnose the issue by using an OBDII scanner to retrieve the fault code, visually inspecting the MAP sensor and its connections, checking for damaged wiring, and performing a voltage test on the sensor.

4. Can I drive my Honda with OBDII code P0108 triggered?

It is not recommended to drive your Honda with this code triggered, as it can lead to poor engine performance and potential further damage. It is best to address the issue promptly.

5. How can I repair OBDII code P0108 in my Honda?

Repair options include replacing the faulty MAP sensor, repairing or replacing damaged wiring or connectors, cleaning or replacing a clogged intake manifold, and resetting the fault code using an OBDII scanner.

6. Is it possible to reset OBDII code P0108 in my Honda without fixing the underlying issue?

Resetting the code without fixing the underlying issue may temporarily turn off the Check Engine Light, but the problem will likely reoccur. It is important to address the root cause of the code.

7. Can a DIY enthusiast fix OBDII code P0108 in a Honda?

Depending on your skill level and access to tools, some DIY enthusiasts may be able to fix this issue by following repair guides or tutorials specific to their Honda model. However, professional help is recommended if unsure.

8. How much does it typically cost to repair OBDII code P0108 in a Honda at a mechanic or dealership?

The cost of repair can vary depending on the exact cause of the issue, but it generally ranges from $100 to $300 for parts and labor. Prices may be higher at a dealership compared to an independent mechanic.

9. Are there any preventive measures to avoid OBDII code P0108 in a Honda?

Regular maintenance, such as cleaning the intake system, inspecting the MAP sensor and its connections, and addressing any engine performance issues promptly, can help prevent the occurrence of this code.

10. How long does it usually take to repair OBDII code P0108 in a Honda?

The repair time can vary depending on the specific cause of the issue and the availability of parts. In general, it may take anywhere from 1 to 3 hours to diagnose and fix the problem related to this code.