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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