P0105 HUMMER - Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction
- Faulty Manifold Absolute Pressure sensor
- Manifold Absolute Pressure harness is open or shorted
- Manifold Absolute Pressure sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
When is the code detected?
An excessively low or high voltage from the sensor is sent to ECM.
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine rough idle
- Engine hesitation
P0105 HUMMER Description
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