Manifold Absolute Pressure Switch

The map sensor measures the absolute pressure inside the intake manifold of the engine.

Manifold absolute pressure switch.

In this video we cover the imap manifold absolute pressure. A failing map sensor can cause engine hesitation rough idle or black smoke from the tail pipe. Change this sensor out. The pcm uses this input as well as others to calculate the correct amount of fuel to inject into the cylinders.

It s usually found in vehicles that use fuel injection. A vehicle s manifold pressure sensor or manifold absolute pressure sensor map is part of an engine s electronic control system. Bwd map sensors convert engine vacuum manifold pressure to an electrical signal for fuel delivery and timing control. As you may know the intake manifold is responsible for distributing the air and fuel mixture from the internal combustion chamber into each cylinder.

The manifold absolute pressure sensor or map sensor is a sensor that is attached to the intake manifold on a car s engine. The map sensor responds to changes in the intake manifold pressure vacuum and provides a reading of engine load. The map sensor also known as the manifold absolute pressure sensor is a necessary component of your vehicle s fuel injection system. How it works is 5 volts dc is supplied to the sensor from the pcm powertrain control module.

The manifold absolute pressure map sensor is used by the powertrain control module pcm for engine load input. Otuayauto 55573248 map manifold absolute pressure sensor air intake switch for chevy 09 11 aveo 07 19 impala 08 19 buick enclave 07 13 gmc sierra 1500 4 9 out of 5 stars 10 13 89 13. If you re experiencing bad fuel economy rough idle turbo codes.