Manifold Absolute Pressure Sensor
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The MAP sensor allows the ECM to calculate the load on the engine, which is used in the calculation of fuel injection time.
The MAP sensor is installed in the air inlet of the intake manifold. The sensor is secured with a single screw and sealed with an O-ring. A three pin electrical connector provides the interface with the engine harness.
If the MAP sensor fails, the ECM adopts a default value of 1 bar (14.5 lbf/in. 2).
With a failed MAP sensor, the engine will suffer from poor starting, rough running and poor drivability.