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Engine-Codes – GMC – P0107 2018 GMC Sierra

P0107 2018 GMC Sierra Code - Manifold Absolute Pressure/Barometric Pressure Circuit Low Input

Quick Answer

The P0107 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates a problem with the Manifold Absolute Pressure (MAP) sensor or Barometric Pressure (BARO) sensor circuit, specifically a low input signal. Common causes include Faulty MAP or BARO sensor, Damaged wiring or connectors 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
P0107 2018 GMC Sierra indicates Manifold Absolute Pressure/Barometric Pressure Circuit Low Input.
Common causes
Common causes include Faulty MAP or BARO sensor, Damaged wiring or connectors 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code P0107 2018 GMC Sierra Description

The P0107 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates a problem with the Manifold Absolute Pressure (MAP) sensor or Barometric Pressure (BARO) sensor circuit, specifically a low input signal. The MAP sensor measures the pressure inside the intake manifold, which helps the engine control module (ECM) determine the correct air-fuel mixture for combustion. The BARO sensor provides the ECM with information about the atmospheric pressure outside the engine, which is necessary for accurate fuel delivery calculations.

OBDII Code P0107 2018 GMC Sierra - Manifold Absolute Pressure/Barometric Pressure Circuit Low Input
P0107 2018 GMC Sierra Code - Manifold Absolute Pressure/Barometric Pressure Circuit Low Input

Common Causes of P0107 2018 GMC Sierra

  1. Faulty MAP or BARO sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Vacuum leak in the intake system
  4. ECM malfunction
  5. Environmental factors affecting atmospheric pressure readings

Symptoms of P0107 2018 GMC Sierra

  1. Rough idling or engine misfires
  2. Reduced power and acceleration
  3. Stalling or hesitation during acceleration
  4. Poor fuel economy
  5. Check Engine Light illuminated on the dashboard

How to Fix P0107 2018 GMC Sierra

  1. Begin by conducting a thorough visual inspection of the MAP and BARO sensor wiring and connectors. Look for any signs of damage, corrosion, or loose connections. Repair or replace any faulty components.
  2. Test the MAP and BARO sensors using a multimeter to ensure they are functioning within the manufacturer's specified parameters. Replace any sensors that are out of range.
  3. Check for vacuum leaks in the intake system by performing a smoke test or using a vacuum gauge. Repair any leaks found.
  4. If the issue persists, perform a diagnostic scan using a professional scan tool to retrieve live data from the ECM and pinpoint the exact cause of the low input signal.
  5. Once the root cause is identified, repair or replace the faulty component as necessary and clear the DTC from the ECM's memory to reset the Check Engine Light.

Cost to Fix P0107 2018 GMC Sierra

The typical repair costs for addressing a P0107 code on a 2018 GMC Sierra can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor in your area. It's important to note that diagnosis time and labor rates at auto repair shops can vary significantly, so it's advisable to obtain quotes from multiple sources before proceeding with the repair. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops often offer more competitive pricing.

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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 P0107 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code P0107 in a 2018 GMC Sierra?

The common symptoms of code P0107 in a 2018 GMC Sierra include a rough idle, decreased engine performance, stalling, and possibly even a decrease in fuel efficiency.

2. What does the OBDII code P0107 in a 2018 GMC Sierra indicate?

The P0107 code in a 2018 GMC Sierra indicates a low input in the Manifold Absolute Pressure (MAP) sensor or Barometric Pressure (BARO) sensor circuit.

3. What are the possible causes of OBDII code P0107 in a 2018 GMC Sierra?

Possible causes of code P0107 in a 2018 GMC Sierra include a faulty MAP sensor, damaged wiring or connectors in the MAP/BARO sensor circuit, a vacuum leak, or a problem with the PCM (Powertrain Control Module).

4. How serious is OBDII code P0107 in a 2018 GMC Sierra?

While code P0107 may not cause immediate harm to the vehicle, it can lead to drivability issues and potentially worsen over time if left unaddressed. It is advisable to diagnose and repair the issue promptly.

5. Can I drive my 2018 GMC Sierra with OBDII code P0107?

It is not recommended to drive your 2018 GMC Sierra with an active P0107 code, as it can lead to poor engine performance and potential stalling. It is best to address the issue before driving the vehicle further.

6. How can I diagnose OBDII code P0107 in my 2018 GMC Sierra?

Diagnosing code P0107 involves checking the MAP sensor's voltage output, inspecting the sensor and its wiring for damage, testing for vacuum leaks, and scanning the PCM for any related trouble codes.

7. How can I repair OBDII code P0107 in a 2018 GMC Sierra?

Repairing code P0107 may involve replacing the MAP sensor, repairing or replacing damaged wiring or connectors, fixing any vacuum leaks, or addressing any PCM issues. It is recommended to follow the manufacturer's repair procedures.

8. Can a dirty air filter cause OBDII code P0107 in a 2018 GMC Sierra?

A dirty air filter is unlikely to directly cause code P0107, as this code is specifically related to the MAP/BARO sensor circuit. However, a dirty air filter can affect overall engine performance and fuel efficiency.

9. How much does it cost to fix OBDII code P0107 in a 2018 GMC Sierra?

The cost of fixing code P0107 in a 2018 GMC Sierra can vary depending on the exact cause of the issue. It may involve expenses for parts, labor, and diagnostic services. It is advisable to consult a mechanic for an accurate estimate.

10. Will resetting the OBDII code P0107 in my 2018 GMC Sierra make it go away permanently?

Resetting the code may temporarily clear the Check Engine Light, but if the underlying issue causing P0107 is not addressed, the code is likely to return. It is crucial to diagnose and repair the root cause to prevent the code from reappearing.

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