AutoCodes – Lincoln – P0108 Lincoln

P0108 Lincoln Code - Manifold Absolute Pressure/Barometric Pressure Sensor High Input

Quick Answer

The Manifold Absolute Pressure (MAP) Sensor is located on the intake manifold and measures the intake manifold pressure. 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 Lincoln indicates Manifold Absolute Pressure/Barometric Pressure Sensor High Input.
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 901

How popular is this code, among other codes? Low

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 Sep 21, 2023

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

The Manifold Absolute Pressure (MAP) Sensor is located on the intake manifold and measures the intake manifold pressure. The Powertrain Control Module (PCM) uses this information to determine the air charge and to provide the input for various engine control functions. Under normal operation, the greatest pressure that can exist in the intake manifold is at ignition ON, and engine OFF, which is equal to the Barometric Pressure (BARO). The lowest manifold pressure occurs when the vehicle is idling or decelerating. The ECM monitors the MAP sensor signal for pressure outside of the normal range. The sensor translates this action into electrical resistance. The MAP sensor may be integrated with an Intake Air Temperature (IAT) sensor. The Diagnostic Trouble Code (DTC) will be set when the MAP Sensor operating voltage is greater than the maximum allowable calibrated parameter of 4.96 volts.

OBDII Code P0108 Lincoln - Manifold Absolute Pressure/Barometric Pressure Sensor High Input - AutoCodes.com — P0108 Lincoln Code - Manifold Absolute Pressure/Barometric Pressure Sensor High Input

What does this mean?

What are the Possible Causes of the DTC P0108 Lincoln?

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

How to Fix the DTC P0108 Lincoln?

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 Lincoln 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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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 Lincoln Code

1. What does the OBDII code P0108 mean on a Lincoln?

P0108 indicates that the Manifold Absolute Pressure (MAP) sensor is detecting a voltage signal that is higher than the expected range, suggesting an issue with the sensor or related components.

2. What are the common symptoms of code P0108 in a Lincoln?

Symptoms may include poor engine performance, rough idling, stalling, reduced fuel efficiency, black smoke from the exhaust, or the Check Engine Light being illuminated.

3. What causes the P0108 code to appear on a Lincoln?

Common causes include a faulty MAP sensor, a vacuum leak, damaged or corroded wiring, a clogged air filter, or issues with the powertrain control module (PCM).

4. Can a dirty air filter cause the P0108 code in a Lincoln?

Yes, a clogged or dirty air filter can restrict airflow, potentially causing inaccurate readings from the MAP sensor and triggering the P0108 code.

5. How do I diagnose the P0108 code on my Lincoln?

Start by inspecting the MAP sensor and its wiring for damage, check for vacuum leaks, examine the air filter, and use a multimeter to test the MAP sensor's voltage output.

6. Is it safe to drive my Lincoln with the P0108 code?

While it may be possible to drive with the P0108 code, it is not recommended as it can lead to poor engine performance and potential damage to other components if left unresolved.

7. How do I fix the P0108 code on a Lincoln?

Repairs may include replacing the MAP sensor, fixing damaged wiring, cleaning or replacing the air filter, repairing vacuum leaks, or reprogramming the PCM if necessary.

8. Can a P0108 code clear itself on a Lincoln?

In rare cases, the code may clear itself if the issue is intermittent, but itâ€™s important to diagnose and address the root cause to prevent further problems.

9. How much does it cost to fix the P0108 code on a Lincoln?

The repair cost varies but typically ranges from $100 to $300, depending on whether the MAP sensor, wiring, or other components need replacement.

10. Can a bad PCM cause the P0108 code on a Lincoln?

While less common, a failing PCM can cause the P0108 code by improperly interpreting the MAP sensorâ€™s signals or failing to regulate engine performance correctly.