Section 07 ENGINE MANAGEMENT (DI)
Subsection 02 (COMPONENT INSPECTION AND ADJUSTMENT)
If resistance tests good,
reconnect
the WTS and
disconnect the AMP connector number 4 on the
MPEM.
Using a multimeter, recheck resistance value be-
tween terminals 9 and 11.
If resistance value is correct, try a new MPEM.
Refer to MPEM REPLACEMENT procedures else-
where in this section.
If resistance value is incorrect, repair the wiring
harness/connectors between AMP connector and
the WTS.
Replacement
Remove air/fuel rail retaining screws.
Cut locking ties as necessary to allow lifting of
air/fuel rail in order to give access to the tempera-
ture sensor.
Disconnect WTS connector and remove WTS.
Apply Loctite 518 on WTS threads then install it.
Reinstall remaining removed parts.
MANIFOLD AIR PRESSURE
SENSOR (MAPS)
F12R0LB
1
MAG SIDE THROTTLE BODY
1. Manifold air pressure sensor (MAPS)
NOTE:
This sensor is a dual function device.
When engine is started and it runs at idle speed,
the sensor takes the atmospheric pressure and
stores it in the MPEM. Thereafter, it takes the
manifold air pressure at operating RPMS.
Ensure sensor is correctly installed in elbow adap-
tor. Otherwise, the MAPS could generate a fault
code for an unexpected sensor range at idle when
it reads the atmospheric pressure. Ensure the cor-
rect connector is plugged and not mixed with the
MAG TPS. Remove sensor and check for oil or dirt
on its end and if problem persists, check throt-
tle plate condition/position and the wiring harness.
Perform the following tests.
Voltage Test
Check the MPEM voltage output to the manifold
air pressure sensor (MAPS).
Disconnect connector from MAPS sensor and
connect a voltmeter between terminal 1 and 3
and also between terminal 1 and 2 of wiring har-
ness.
If voltage test is good, replace the MAPS.
If voltage test is not good, check the continuity of
the MAPS circuit.
Resistance Test
Disconnect the AMP connector number 3 on the
MPEM.
Using a multimeter, check continuity of circuits
3-3, 3-6 and 3-7.
If wiring harness is good, try a new MPEM. Refer
to MPEM REPLACEMENT procedures elsewhere
in this section.
Otherwise, repair the wiring harness/connectors
between AMP connector and the MAPS.
Replacement
Remove the air intake silencer.
Remove the air duct.
Disconnect MAPS connector and remove the
MPAS.
Install the new MAPS paying attention to index its
tab into the adaptor notch.
Reinstall remaining removed parts.
smr2004-Complete Line Up
363
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Содержание 2006 GTI
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