Skoda Octavia Workshop Manual page 28

01
Display group 001
Read measured value block
760...860 80...110
rpm °C
1 2
Idling speed
Test table - display group 001
Display Readout on V.A.G
block 1552
1
2
3 Readout does not
vary (constant
0.00 and 0.30 V or
constant 0.7 and
1.00 V)
constant 1.00 V
------------ ------------
Self-Diagnosis
1
→
0...1.0 00000000
V
3 4
Lambda voltage
Coolant temperature
Possible cause of fault
Test table - display group 000, display
block 10 page 01-19
Test table - display group 000, display
block 3 page 01-17
Large quantity of unmetered air
Spark plug faulty
Holding pressure too low or too high
Injector faulty
Coolant temperature sender -G62 faulty
Activated charcoal filter solenoid valve
-N80 faulty, blocked or jamming
Lambda probe heater not operating
Lambda probe faulty or dirty
Short circuit to positive caused by:
Lambda probe or
Signal wire or
Engine control unit
K Readout in display
Display blocks
Engine operating state
- Eliminate cause of unmetered air
- Test spark plugs
- Test fuel pressure regulator and holding
pressure
- Test injectors
- Test coolant temperature sender -G62
- Test activated charcoal filter solenoid valve
- Test lambda probe heater
- Interrogate fault memory
lambda probe if necessary
- Test lambda probe
Rectifying fault
page 24-44
page 24-41
page 24-31
page 01-12, Final control diagnosis
page 24-13
page 01-4, test
page 24-12
S00.5109.51.20
OCTAVIA
page 24-12
Edition 11.98