P1107 - FAULT CODE - OBD2

POST UPDATED IN January, 2023

P1107 Code failures by brands

P1107 ACURA, HONDA: BAROMETRIC PRESSURE SENSOR CIRCUIT LOW VOLTAGE

P1107 BUICK, CADILLAC, CHEVROLET, GMC: MANIFOLD ABSOLUTE PRESSURE SENSOR CIRCUIT INTERMITTENT LOW VOLTAGE

P1107 CHRYSLER, DODGE, JEEP: BARO SOLENOID PERFORMANCE

P1107 ISUZU: LOW INTERMITTENT MAP CIRCUIT VOLTAGE

P1107 JAGUAR: MAP SENSOR CIRCUIT COMPARISON VOLTAGE TOO LOW

Description of DTC code P1107

The BARO Sensor (Barometric Pressure) takes atmospheric pressure readings and this data is transmitted to the ECM (Engine Control Module). On the other hand, the MAP sensor (Manifold Absolute Pressure) is responsible for indicating how much pressure is in the intake manifold, and with this information, the air density is calculated to determine the engine air flow rate. These two sensors work together intending to achieve strategies for the ECM, through which the fuel is used in the best possible way, as well as the engine ignition is the most efficient.

The setting of the P1107 OBDII diagnostic code occurs when a fault is detected when measuring engine fuel-air. This fault is due to the ECM finding that the BARO Sensor has voltage levels below allowable levels, thus causing a low voltage condition. On certain vehicles, this code may point to the same, only in the MAP Sensor.

Symptoms of fault code P1107

  • Check Engine light illumination.
  • The engine runs unstable.
  • Engine stumbles at idle.
  • Lower fuel efficiency.

Causes of OBD2 P1107

DTC P1107 OBD2 is set by one or more of the following factors:

  • Barometric Pressure Sensor or Manifold Absolute Pressure Sensor wires or connectors may have defects.
  • The BARO Sensor may be in poor condition.
  • The MAP Sensor may be damaged.
  • The ECM may have programming errors.

Possible solutions of the DTC code P1107

To correct the P1107 OBDII fault code you should consider the following:

  • Consult the Technical Service Bulletins. The information contained in them, as they are direct from the manufacturer, is very useful.
  • Perform a scan of the vehicle in order to check if other trouble codes are configured that indicate ignition faults or the MAP Sensor or MAF Sensor.
  • Inspect wiring and wiring connectors that are related to the BARO Sensor and MAP Sensor to verify that they are in good condition. Repair it as necessary.
  • Consult the manufacturer's manual for electrical values for each of the sensors related to this code and verify that the actual values are within the specified range. If not, make corrections as necessary.

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