Skoda Octavia Workshop Manual page 31

OCTAVIA
Display group 003
Read measured value block
760...860 17...34 %
rpm
1 2
Idling speed
Test table - display group 003
Display Readout on V.A.G
block 1552
1
2 Signal not to
tolerance
Edition 11.98
S00.5109.51.20
Self-Diagnosis
3
→
4...10 ° 22...41 %
3 4
Throttle valve angle
Engine load
Possible cause of fault
♦ Test table - display group 000, display
block 10 ⇒ page 01-19
♦ Air conditioning on
♦ Electrical components on
♦ Lambda control at limit of rich or lean
mixture
♦ AC compressor runs even though AC off
♦ Unmetered air downstream of air mass
meter
♦ Unmetered air downstream of throttle valve
♦ Vacuum hoses detached
♦ Fuel pressure regulator faulty
K Readout in display
Display blocks
Throttle valve positioner analysis
- Switch off air conditioning
- Switch off consumers
- Test lambda control ⇒ page 24-12
- Test AC compressor switch ⇒ page 01-12,
Final control diagnosis
- Rectify cause of unmetered air
- Inspect attachment of vacuum hoses
- Test fuel pressure regulator and holding
pressure ⇒ page 24-44
Rectifying fault
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