P0107 Fault Code

Manifold Absolute Pressure/Barometric Pressure Circuit Low Input

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0107 code indicates that the Engine Control Module (ECM) has detected a low input from the Manifold Absolute Pressure (MAP) sensor. This sensor measures the pressure inside the intake manifold, which is essential for determining the engine's load. When the voltage signal from the sensor is below the expected threshold, the ECM will trigger the P0107 fault code.

• Function of the MAP Sensor: It helps in calculating the air density, which is crucial for accurate fuel injection and ignition timing.
• Consequences of Low Input: A low signal can lead to poor engine performance, increased emissions, and potentially trigger the check engine light.

What are the symptoms of the P0107 code?

Drivers may experience various symptoms when the P0107 code is triggered, including:

• Poor acceleration and reduced engine power.
• Increased fuel consumption due to incorrect air-fuel mixture.
• Engine stalling or misfiring conditions.
• Check engine light illuminated on the dashboard.

What causes the P0107 code?

The low input signal can be caused by several issues, including:

• A faulty MAP sensor that is unable to provide accurate readings.
• Issues with the electrical connections, such as corroded or damaged wires.
• Vacuum leaks in the intake manifold that affect pressure readings.
• Faults in the ECM itself, though this is less common.

How to fix P0107?

To resolve the P0107 code, the following steps are typically recommended:

• Inspect and repair any damaged or corroded wires and connectors associated with the MAP sensor.
• Check for vacuum leaks in the intake manifold and repair them as necessary.
• Test the MAP sensor for proper operation and replace it if it is faulty.
• Clear the code and perform a test drive to ensure the issue has been resolved.