1.05L REVOTORQ ENGINE 158 v. 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 : Pin Details : Pin No Description 1 + Ub 2 Uext 3 MAF Signal 4 IAT + 5 GND/IAT
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