Skoda OCTAVIA MK1 Service Manual page 168

Readout on
-V.A.G 1552 -
outside tolerance
field
Display group 012 (lambda learned values):
l Engine runs in idling speed
Reading measured value block 12
xxx rpm xxx mg/s
1
Idling speed
Display group 013 (fuel consumption):
l Engine runs in idling speed
Reading measured value block 13
xxx rpm xxx mg/s
1 2
Idling speed
Possible cause of fault
Minus value: mixture too rich,
t
lambda control leans off
Plus value: mixture too lean, lambda
t
control enriches
t Injection valve defective
t large unmetered air volume
xx % x.xx V
2 3
Lambda regulator
drawn in air mass
xxx km/h x.xx l/h
3
Driving speed
drawn in air mass
→ ← Readout on display
4 ← Display fields
Lambda probe voltage
→ ← Readout on display
4 ← Display fields
Fuel consumption
168
Rectifying fault
Wait approx. 30 seconds until the
–
value stabilises.
Testing injection valves
–
→ Chapter.
Eliminate cause of unmetered
–
air.
Specification
0.00...1.00 V
-25...25 %
76...164 mg/s
-
Specification
0.50...2.00 l/h
0 km/h
76...164 mg/s
-
Analysis
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-
→ Chapter
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Analysis
-
-
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