1.5L REVOTORQ ENGINE 180 iv. AIR MASS FLOW SENSOR This sensor is mounted between air filter and turbocharger. It gives Information about the amount of air quantity & temperature entering the engine. This input is used by the ECU for corrections of fuel quantity based on amount of air availability for optimization of exhaust gas circulation & the turbocharger control. While assembling, the AMF sensor the point of the arrow should be towards the Turbo charger. SENSOR LOCATION Checking Condition With Ignition 'ON', Check Output Voltage between Pin 3 (MAF) and Pin 5 (GND). Check Output Current between Pin 1 (Ub) and Pin 5 (GND). Signal/Output Current The current consumption has to be between 35 and 55mA. Signal/Output Voltage The analog output signal is good between 0 and 1V NOTE Check the AMF Sensor with no mass flow. The above given values are for zero mass flow. Every tiny whiff of air will cause a NTF". CONNECTOR DETAILS PINOUT DETAILS Pin No Description 1 Ubat 5V 2 GND 3 Tm 4 NTC v. VENTURI It is an integral part of High pressure pump. It has inlet & outlet connections. One connection comes from injector back leak circuit & the other connection goes to the fuel tank (return Line), in between there is a "T" connector which goes to the fuel filter.
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