Skoda Octavia 1997 Workshop Manual page 14

01
Readout on -V.A.G 1552-
16521
Bank 1, probe 2
16522
Bank 1, probe 2
16524
Bank 1, probe 2
16554
Bank 1, fuel metering system
16555
Bank 1, fuel metering system
16556
Bank 1, fuel metering system
16684
Combustion misfiring detected
16685
Cyl. 1 Combustion misfiring de-
tected
16686
Cyl. 2 Combustion misfiring de-
tected
16687
Cyl. 3 Combustion misfiring de-
tected
16688
Cyl. 4 Combustion misfiring de-
tected
16705
Engine speed sender -G28
16706
Engine speed sender -G28
16711
Knock sensor 1 -G61
16712
Knock sensor 1 -G61
01-2 2
page
Octavia 1997
Rectifying fault
Voltage too low
–
Voltage too high
No activity
–
Malfunction
–
–
–
–
–
–
–
System too lean
System too rich
–
–
–
–
–
–
Implausible signal
–
No signal
–
Signal too low
–
Signal too high
Self-diagnosis II
1.6 l/75 kW Engine, Fuel Injection and Ignition System
Test lambda probe -G130- and lambda control down-
stream of catalytic converter µ Chapter 24-4.
Test fuel pressure regulator and holding pressure
µ Chap. 24-2
Test injection valves µ Chapter 24-2
Test fuel pump µ 1.6/75 Engine, Mechanical Compo-
nents; Rep. Gr. 20
Inspect exhaust system for leaks µ 1.6/75 kW Engine,
Mechanical Components; Rep. Gr. 26
Inspect secondary air system for leaks µ 1.6/75 kW
Engine, Mechanical Components; Rep. Gr. 26
Inspect vacuum lines for leaks
Testing intake system for leaks (unmetered air)
µ Chap. 24-2.
Test lambda probe -G39- and lambda control upstream
of catalytic converter µ Chapter 24-4.
Test fuel pressure regulator and holding pressure
µ Chap. 24-2
Check the resistance values of the injectors (12...17 Ω
at approx. 20 °C).
Test ignition cables and spark plugs µ Chap. 28-1.
Test power output stage -N122- µ Chapter 28-1.
Read measured value block, display groups 014, 015
and 016 µ Chap. 01-5.
Test resistance of sender (730...1000 Ω).
Test wiring and plug connections according to current
flow diagram.
Replace engine speed sender -G28-.
Read measured value block, display groups 020, 026
and 028 µ Chap. 01-5.
Edition 10.04
S00.5135.52.20