Nissan GT-R (R35) · Service Manual ENGINE

MANIFOLD ABSOLUTE PRESSURE SENSOR

VR38

Description


The manifold absolute pressure (MAP) sensor is placed at intake manifold collector. It detects intake manifold pressure and sends the voltage signal to the ECM.

JMBIA0877ZZ.JPG
The sensor uses a silicon diaphragm which is sensitive to the change in pressure. As the pressure increases, the voltage rises.


JMBIA1453GB.JPG

Component Function Check


 
 1.CHEK MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR FUNCTION

Diagnosis Procedure


 
 1.CHECK GROUND CONNECTION
 
 2.CHECK MAP SENSOR POWER SUPPLY CIRCUIT
 
 3.CHECK MAP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
 
 4.CHECK MAP SENSOR INTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
 
 5.CHECK MAP SENSOR
 
 6.CHECK INTERMITTENT INCIDENT

Component Inspection


 
 1.CHECK MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR