SMPE MAFS010 User manual

INSTRUCTIONS
These instructions are intended as a guide
only and are not a substitute for a workshop
manual. The fitter must have a degree of
mechanical competence. If you are in any
doubt as to your ability to fit the part, do not
undertake the job.
Please Read These First
For more Technical Tips and to
register your warranty online visit
www.smpe.co.uk
01527 839307
Contact technical sales on
www.smpe.co.uk
Air Mass Meter
Safety
Warning; The Air Mass Meter is located
on the engine in a location that can get
very hot. Ensure that the vehicle has
cooled to a safe level before attempting
to replace it.
Removing the old Air Mass Meter
1 . Disconnect the battery.
2. Ensure that the area around the Air
Mass Meter is clean and free from
debris.
3. Disconnect the electrical terminal
block and check the loom and
connector for damage.
4. Slacken the hose clips that secure
the inlet and outlet hoses.
5. Remove the Air Mass Meter.
Note
Air leaks from the large diameter hoses
are a common failing point. Fully
inspect them for any cracks or
deterioration and replace them as
necessary. ou should remove the
hoses for a proper inspection and flex
them to highlight any damage within the
convoluted sections.
Fitting the new Air Mass Meter
1 . Insert the new Air Mass Meter into
the large hoses, it may be
necessary to apply a small amount
of lubricant.
2. Ensure that the direction of airflow
and the orientation of the connector
plug are correct.
3. Remake the electrical connection.
4. Reconnect the battery.
Air Mass Meter
SMPAIR01 /1
PTO

5. Following the procedure outlined in your
vehicle’s service manual to clear any fault
codes that may have been set (you may
need to use a fault code reader or
specialist equipment). Failure to do this
may cause the computer to register a fault
and stay in “limp home” mode. This may
damage the catalytic converter and other
emission devices
.
6. Check for any air leaks.
MAFS01 0 / 1 9655
There is a common problem concerning
the air mass meters on Vauxhall 1 .8 & 2.0l
applications.
The fault, and this bulletin, concerns the
specific combination of fault codes P01 00
and P011 0. This information is provided as
a guide only.
The fault is often falsely diagnosed as air
mass meter fail, this misdiagnosis results
in units being returned as warranty with no
faults.
There is a weak point within the wiring
loom that effects the earth connection to
pin three of the air mass meter (yellow
wire). The fault can be permanent or
intermittent.
Within the wiring loom (generally
underneath the air intake hose next to the
battery) is a soldered three way joint that
fails. Strip the cloth tape from the loom,
locate the joint. Remove the heat shrink
and repair.
An improvement can be made by
connecting into this joint a separate earth
run from, say the alternator mount or, any
other suitable earth point.
Insulate the new joint and recover the
loom. Clear the fault codes and test the
car.
CAUTION - We recommend that this repair
is carried out by a professional automotive
electrician to avoid potential damage of
components such as the ECU.