P0106 1997 TOYOTA CAMRY - Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem

Possible causes

- Faulty Manifold Absolute Pressure sensor

- Manifold Absolute Pressure harness is open or shorted

- Manifold Absolute Pressure sensor circuit poor electrical connection

- Vacuum line

- Faulty Engine Control Module (ECM)

When is the code detected?

An excessively low or high voltage from the sensor is sent to ECM

Possible symptoms

- Engine Light ON (or Service Engine Soon Warning Light)

- Engine rough idle

- Engine hesitation

P0106 1997 Toyota Camry Description

By 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.