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Home >> Jaguar >> 2015 >> XFR-S >> Repair and Diagnosis >> External Pages >> Different car >> Section 47 (Electronic Engine Controls - GTDI 2.0L Petrol -- XF/X250) >> Electronic Engine Controls - GTDI 2.0L Petrol >> Description And Operation >> Electronic Engine Controls - System Operation And Component Description (G1550549) >> Description >> Mass Air Pressure (MAP) Sensor

Mass Air Pressure (MAP) Sensor

WARNING: This page is about a different car, the 2015 Jaguar XF, 2014 Jaguar XF, and 2013 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.
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A single MAP sensor is located in the intake manifold and is secured with two screws. The sensor provides a voltage signal to the ECM relative to the intake manifold pressure.

The MAP sensor has a three pin connector which is connected to the ECM and provides a 5V reference voltage from the ECM, a signal input to the ECM and a ground connection.

The MAP sensor uses a diaphragm transducer to measure the air pressure which allows the ECM to detect quick pressure changes in the intake manifold after the electric throttle. The signal is used in conjunction with the MAF sensor signal to calculate the injection period.

The ECM monitors the engine MAP sensor for faults and can store fault related DTC 's. These can be retrieved using a Jaguar approved diagnostic system. If the sensor fails, the ECM uses the MAF sensor signal value as a substitute.

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