P0107: OBD-2 error code interpretation and solutions

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Vehicle engine and/or automatic transmission

Code: P0107 - Manifold Absolute Pressure/Barometric Pressure Circuit Low

The P0107 code is a common issue for Ford, Nissan, Toyota, Skoda, Mercedes-Benz, Kia, BMW, Volkswagen, and other car brands. It is caused by the ECM (Engine Control Module) receiving a signal from the PCM indicating that the barometric pressure sensor (MAP) circuit has detected a low voltage issue with its input in the intake air pressure system. This signal is crucial for the PCM to determine the proper fuel delivery. When this occurs, the PCM signals the ECM, and the code is set and stored in memory.

Causes of OBD P0107

Wiring issues, weak connections, and broken wires,
Low voltage sensor or narrow voltage range,
Faulty PCM or transmission control module,
Defective MAP sensor

Symptoms of P0107 Error

Loss of vehicle power,
Lack of power and rough idle,
Poor fuel economy,
Dark or black smoke from the exhaust

How to Diagnose DTC P0107?

To diagnose the P0107 code, a technician should follow these steps:

Scan the ECU codes and check for saved P0107 data.
Test the continuity and output voltage of the MAP sensor.
If necessary, check the loop/wiring and proceed with the first step of the repair process. If no codes or data are found, proceed to the next step.
Check for voltage drop across the MAP sensor terminals when applying (or removing) vacuum.
Check for short circuits in the circuit components or PCM ECU failure.
If no short circuit is found in the wiring or the issue persists after repairs, replace the ECU.
If the issue resolves after replacing the ECU, check for other codes in the ECU.

How to Avoid Common Mistakes with OBD P0107 Code?

Here are some of the most common mistakes when diagnosing this issue:

Not checking freeze frame data for this code,
Overlooking wiring or connection issues causing the symptom,
Attempting to diagnose the problem without checking the voltage drop across the MAP sensor,
Replacing the PCM without first testing for other codes in the ECM or checking for short-circuiting components in the circuit,
Not checking for voltage drop at the MAP sensor terminals when applying (or removing) vacuum,
Replacing the MAP sensor without first checking the wiring/harness, PCM, or MAP sensor itself,
Not checking for other codes in the ECM, which can result in an unaddressed MIL-On condition after repairs.

How Serious is the P0107 Error?

The P0107 error is important because it can lead to power loss and decreased fuel efficiency. If left unresolved, this issue may cause more severe problems in the future, such as catalytic converter failure.

How to Fix the P0107 Code?

Repair wiring/cable routing
Replace the barometric pressure sensor (MAP)
Replace the engine control unit (PCM) or engine control module (ECM)

Conclusion

In conclusion, the P0107 code is a common fault code indicating that the computer has detected an issue with the absolute pressure/barometric pressure sensor. This code can occur for various reasons, but before replacing the PCM ECU or MAP sensor, all possible causes should be thoroughly checked and tested.

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OBD P0107 code analysis and solutions

The page presents a in-depth analysis of code P0107 for Opel, Renault, VW (Volkswagen), Ford, Peugeot, Mitsubishi, Skoda, BMW, Citroën, Toyota, Lada, Honda, Kia, and other models to investigate the possible causes and solutions related to obd 2 errors, with focus on the issue. We provide engineering documentation and approaches for diagnostics to identify and resolve the issue effectively. Our goal is to become a complete resource offering information on issues related to obd 2 errors and to provide you with the tools needed for successful repair and maintenance of your vehicle. If during the repair of OBD-II errors you need to purchase parts, don’t forget to check out Avtopro!