How To Test and Replace an Absolute Pressure Sensor P0105 HD
The absolute pressure sensor detects ambient barometric pressure and intake manifold pressure and modifies the voltage signal received from the ECM. As the pressure increases, the voltage rises. This was performed on a 1997 Nissan Maxima. Check with your vehicle's repair manual for testing parameters.
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P0105 - An excessively low or high voltage from the sensor is entered into ECM. Or, a low voltage from the sensor is entered into ECM under heavy load driving conditions. Or, a high voltage from the sensor is entered into ECM under light load driving conditions.
Note:
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