Skoda OCTAVIA MK1 Service Manual page 143

(blocked)
t Fuel pressure regulator defective
t Fuel pump defective
t
t
lower limit
Activated charcoal filter system
value
t solenoid valve 1 -N80- leaking,
jams
Injection valve(s) defective
t
(always open)
t Fuel pressure regulator defective
Note
t Regarding fault code 00537:
If the fault "lambda control top limit" is detected, the lambda control has reached the
t regulating limit in direction of "enrich". However the lambda probe still evaluates "lean
mixture".
If the fault "lambda control bottom limit" is detected, the lambda control has reached the
t
regulating limit in direction of "lean". The lambda probe still evaluates "rich mixture".
Readout on Possible cause of fault
-V.A.G 1552-
00545
Engine/gearbox
electrical
connection
Short circuit to
t Short-circuit to
positive
positive between
engine control unit
Unmetered air
Fuel tank empty
vehicle
handling
no lambda
t
control
Poor
t vehicle
handling
Possible effects
t see workshop
manual automatic
gearbox
143
→ Chapter.
Test fuel pressure
–
regulator and holding
pressure → Chapter.
Test fuel pump → 1.6
–
ltr./74 kW Engine,
Mechanics → Rep.
Check induction pipe for
–
leaks.
– Fill up vehicle.
Check -N80- →
–
→ Chapter.
Testing injection valves
–
→ Chapter.
Test fuel pressure
–
regulator and holding
pressure → Chapter.
Rectifying fault
– Remove open circuit in
wiring or short circuit
according to current flow
Gr.20.
Chapter,