The P0107 code is an OBD-II trouble code that refers to a low input from the Manifold Absolute Pressure (MAP) Sensor/Barometric Pressure Sensor. This sensor is critical for measuring the air pressure in the intake manifold, which helps the engine control module (PCM) determine the correct air-fuel mixture for optimal engine performance.
What Does the P0107 Code Mean?
OBD-II Code P0107 is defined as a Manifold Absolute Pressure Sensor/Barometric Pressure Circuit Low Input. When the PCM detects that the voltage from the MAP/Barometric sensor circuit is below 0.5 volts for a duration of 10 seconds or more, it triggers this code.
What Causes the P0107 Code?
Several factors can lead to the P0107 code, including:
- Defective Manifold Absolute Pressure Sensor/Barometric Pressure Sensor
- Faulty or corroded wiring or connections related to the MAP sensor
- Short to ground in the MAP sensor wiring
- Open circuit in the 5-volt reference circuit
What Are the Symptoms of the P0107 Code?
Common symptoms associated with the P0107 code may include:
- Illumination of the Check Engine Light
- Hard starting or poor fuel economy
- Noticeably poor engine performance
How Serious Is the P0107 Code?
The P0107 code is classified as urgent. If not addressed, it can lead to severe damage to the vehicle and affect the safety of the driver and passengers. Prompt diagnosis and repair are advised to prevent further complications.
How to Diagnose the P0107 Code
Diagnosing the P0107 code involves several steps:
- Record the freeze frame data and replicate the conditions under which the code sets.
- Use a data streaming scan tool to monitor engine load, throttle position, RPM, and road speed.
- Check the MAP sensor connector for a steady 5-volt reference voltage and a good ground.
- Perform a vacuum pump voltage output test on the MAP sensor.
- Inspect the MAP sensor vacuum hose and ensure proper sealing if it plugs directly into the intake manifold.
Common Repairs for the P0107 Code
Repairs for the P0107 code may include:
- Replacing the defective MAP sensor
- Repairing or replacing corroded or damaged wiring and connectors
- Fixing any shorts or open circuits in the sensor wiring
- Ensuring proper vacuum hose connections and seals
How Much Does It Cost to Fix the P0107 Code?
The cost to fix the P0107 code can vary widely based on the specific repairs needed, labor costs, and geographic location. On average, repairs may range from $100 to $500, especially if a sensor replacement is required.
Can I Fix the P0107 Code Myself?
If you have automotive experience and the right tools, you might be able to diagnose and fix the P0107 code yourself. However, keep in mind that proper diagnosis is critical, as simply replacing the sensor may not resolve the underlying issue. If you’re unsure, it’s advisable to consult a professional mechanic.
