2011 FORD KUGA Maf

E96872
1
2
3
5
4
6
7
8
Description
Item
Electrical connection
1
Solenoid coil
2
Engine oil pressure supply bore and ring
groove for camshaft adjustment unit
chamber A
3
Tappet
4
Engine oil pressure supply bore for
camshaft adjustment solenoid
5
Engine oil pressure supply bore and ring
groove for camshaft adjustment unit
chamber B
6
Spring
7
Engine oil return bore
8
MAF sensor
E58185
1
2
43
565
Description
Item
Housing
1
Housing cover
2
Control electronics
3
Sensor element
4
Sensor measuring cell
5
Heating zone
6
The MAF sensor works on the ‘hot-film principle’.
The MAF sensor is powered via the Powertrain
Control Module relay in the BJB. The MAF sensor
is connected to ground via the PCM.
The MAF sensor sits in a molded part which
protrudes into the center of the air cleaner's outlet
pipe. From this position, it measures the air mass
drawn in by the engine.
The air mass aspirated by the engine is determined
on the basis of the cooling effect of the intake air
via a hot-film element in the MAF sensor. The
greater the aspirated air mass, the greater the
cooling effect and the lower the electrical resistance
of the hot-film element. The electronics in the MAF
sensor process this resistance value and send a
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voltage signal to the PCM corresponding to the
aspirated air mass.
This analogue voltage signal is between 0.5V and
5V. Low mass of intake air produces a low voltage
signal. A high mass of intake air produces a
correspondingly high voltage signal.
The MAF sensor is also capable of detecting the
backflow of the intake air. A sensor element is
heated electrically on the integrated chip and then
cooled by the air flowing through. The regulating
switch supplies the heating current in such a way
that it attains a constant excess temperature in
comparison to the intake air. The mass air flow and
the direction of flow can be derived from this
heating current (given in the form of a signal
voltage). Below a certain voltage value there is a
return flow. The direction is flow is registered by
two sensors pointing in different directions. The
measurement does not require a great deal of
software processing effort, even with a strongly
pulsating mass air flow.MAPT
E96146
The MAPT sensor combines two sensors in one
housing. These are the MAP sensor and the IAT
sensor. They take the form of a piezoelectric
resistor and an NTC resistor.
The MAP sensor receives a reference voltage of
5V from the PCM. The output signal from the MAP
sensor element is an analog voltage signal which
changes proportionately to the prevailing pressure
in the intake manifold.
The IAT sensor records the temperature of the
intake air downstream of the intercooler.
APP sensor
00
E96668
1
2
43
AV
56
7
G1021908en2008.50 Kuga8/2011
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Mass Air Flow (MAF) Sensor(29 226 0)
Removal
NOTE:Removal steps in this procedure may
contain installation details.
1. Torque: 10
Nm
E106250
x2
Installation
1.To install, reverse the removal.
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