P0105 1998 TOYOTA CAMRY - Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction
When is the code detected?An excessively low or high voltage from the sensor is sent to ECM.
P0105 1998 Toyota Camry DescriptionBy a built–in sensor unit, the manifold absolute pressure sensor detects the intake manifold pressure as a voltage. The ECM then determines the basic injection duration and basic injection advance angle based on this voltage. Since the manifold absolute pressure sensor does not use the atmospheric pressure as a criterion, but senses the absolute pressure inside the intake manifold (the pressure in proportion to the present absolute vacuum 0), it is not influenced by fluctuations in the atmospheric pressure due to high altitude and other factors. This permits it to control the air–fuel ratio at the proper lever under all conditions.
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