Skoda OCTAVIA 2004 Workshop Manual page 185

OCTAVIA
Edition 12.00
S00.5111.54.20
Fuel Formation/Fuel Injection
♦ Hand vacuum pump (e.g. V.A.G 1390)
♦ Test box V.A.G 1598/22 or V.A.G 1598/31
♦ Hand-held multimeter (e.g. V.A.G 1526 A)
♦ Adapter cable set (e.g. V.A.G 1594 A)
♦ Current flow diagram
condition
l Fuses 29 and 34 o.k.
- Start engine and run at idling speed for about
5 seconds.
- Switch ignition off.
- Observe positioning lever at intake manifold
flap (2nd person required).
- After the ignition is switched off, the intake
manifold flap must close for about 3 seconds,
then move back into its original position.
If the intake manifold flap does not switch over,
perform the following inspections:
- Inspect switchover mechanism of intake
manifold flap by operating the linkage by
hand. It must be possible to easily move the
intake manifold flap.
- Ensure the vacuum hoses are correctly at-
tached and connected as specified in the
hose diagram ⇒ page 23-59.
- Detach vacuum hose at vacuum positioning
element for intake manifold flap.
- Connect hand vacuum pump to vacuum po-
sitioning element.
- Operate hand vacuum pump.
♦ Intake manifold flap must close.
i
t t and
23
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