Manifold Absolute Pressure Sensor (MAP)

DS Code:1766
Ways: 04


GM:12681993

Manufacturer	Model	Engine	Fuel	Year	Note
GM	Cruze	1.4 4Cil 16v	Flex	18 > 22	Turbo
GM	Equinox	1.5 4Cil 16v	Flex	20 > 23	Turbo - (Not applicable to vehicles with Start/Stop system).
GM	Tracker	1.4 4Cil 16v	Flex	18 > 20	Turbo

Details Manifold Absolute Pressure Sensor (MAP)

The manifold absolute pressure sensor (MAP) informs the electronic control unit (ECU) the absolute pressure measured inside the intake manifold under the several operation conditions of the engine.

The value obtained is added to the information of air temperature. With these data, the system identifies the air mass that is being intake, calculates the progress of the ignition and the time for opening the injection nozzle, always looking for the ideal air/fuel ratio.

On older vehicles, the MAP sensor is fixed next to the engine and connected to the intake manifold through a hose.

In more modern vehicles, the MAP sensor is integrated and its function is to inform the pressure in the intake manifold and the temperature of the air. The sensor is directly fixed by screws on the intake manifold (it does not use a hose).