P0105
Powertrain Codes
P0105 - Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine rough idle
- Engine hesitation
Possible Causes
- Manifold Absolute Pressure harness is open or shorted
- Manifold Absolute Pressure sensor poor electrical circuit connector
- Faulty Manifold Absolute Pressure sensor
- Faulty Powertrain Control Module (PCM) or Engine Control Module (ECM)
When Detected
An excessively low or high voltage from the sensor is sent to ECM.
Description
The Manifold Absolute Pressure (MAP) sensor provides instantaneous manifold pressure information to the engine's Engine Control Module (ECM). The data is used to calculate air density and determine the engine's air mass flow rate, which in turn determines the required fuel metering for optimum combustion. A fuel-injected engine may alternately use a Mass Air Flow (MAF) sensor to detect the intake airflow. A typical configuration employs one or the other, but seldom both.
In some vehicles the absolute pressure sensor is built into ECM
MAP sensor examples:
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Information For Specific Makes
P0105 HYUNDAI
P0105 KIA
P0105 MAZDA
P0105 NISSAN
P0105 INFINITI
P0105 MITSUBISHI
P0105 AUDI
P0105 VOLKSWAGEN
P0105 CHEVROLET
P0105 GMC
P0105 JAGUAR