Skoda Octavia 1997 Workshop Manual page 20

01
Readout on
-V.A.G 1552 -
17553
Air mass meter -G70-
17557
Lambda control (Bench
1)
17559
Bank 1, mixture adapta-
tion range 1
17560
Bank 1, mixture adapta-
tion range 2
17573
Bank 1, mixture adapta-
tion range 1
17574
Bank 1, mixture adapta-
tion range 2
17579
Angle sender 2 for TV
drive -G188-
17580
Angle sender 2 for TV
drive -G188-
17581
Angle sender 2 for TV
drive -G188-
17584
Bank1, lambda correc-
tion according to cata-
lytic converter
17586
Linear lambda probe/
pump current
17587
Linear lambda probe/
pump current
17588
Linear lambda probe/
pump current
17589
Linear lambda probe/
reference voltage
17590
Linear lambda probe/
reference voltage
17591
Linear lambda probe/
reference voltage
01-2 8
page
OCTAVIA 1997
Rectifying fault
–
Short circuit to
Read measured value block, display group 002
positive
–
Check wiring to meter -G70-
Fault Finding and Fitting Locations
implausible –
Test lambda probe -G39- and lambda control upstream of catalytic
control value
converter
Below lean- –
Testing the intake system for tightness (unmetered air)
ness limit
–
Inspect tightness of the secondary air system
Mechanical Components; Rep. Gr. 26
Below lean-
–
Test fuel pressure regulator and holding pressure
ness limit
–
Test injected quantity
–
Test fuel delivery unit
nents; Rep. Gr. 20
–
Above rich-
Test fuel pressure regulator and holding pressure
ness limit
–
Test injected quantity
–
Test solenoid valve for activated charcoal filter
Above rich-
control diagnosis
ness limit
Implausible –
Check angle sender in measured value block, display group 060
signal
Chapter 01-6
–
Test throttle valve control unit
Signal too low
Signal too
high
Regulating –
Test lambda probe ageing -G39- upstream of catalytic converter
limit reached
Chapter 24-3
–
Test lambda probe -G130- and lambda control downstream of cata-
lytic converter
Open circuit –
Test lambda probe -G39- and lambda control upstream of catalytic
converter
Short circuit to
earth
Short circuit to
positive
Open circuit
Short circuit to
earth
Short circuit to
positive
2,0 l/85 kW Engine, Fuel Injection and Ignition System
Chapter 24-3
Chapter 24-2
2.0 l/85 kW Engine, Mechanical Compo-
Chapter 24-2
Chapter 24-3
Chapter 24-3
Self-diagnosis II
Chapter 01-5
Current Flow Diagrams, Electrical
2.0 l/85 kW Engine,
Chap. 24-2
Chap. 24-2
Chapter 01-4, final
Chapter 24-2
S00.5128.53.20
Edition 01.04