Skoda OCTAVIA 2004 Workshop Manual page 72

01
Specified readouts for charge pressure control
Display group 011 at full throttle (road test in 3rd or 4th gear, coolant temperature not less than +85 °C)
07.97
for models ä
Notes:
♦ Accelerate the vehicle at full throttle for the test.
♦ Read off or print out the measured values once an engine speed of 3000 rpm has been reached (second person
required).
Read measured value block
3340 rpm 1830 mbar
Engine speed 2800...3200 rpm o.k.
------------ 01-58 ------------
Self-diagnosis
11
1850 mbar 68 %
Momentary charge pressure
♦ as specified charge pressure in display block 2 (tolerance ± 100 mbar) o.k.
♦ insufficient charge pressure:
- No charge pressure control
♦ excessive charge pressure:
- Pressure hose of charge pressure control dropped off or blocked, solenoid
valve -N75 jamming
- Linkage at turbocharger rusted tight, pressure unit faulty
pressure, page 23-22
Specified charge pressure requested by control unit
♦ 1800...2050 mbar o.k.
♦ > 2050 mbar charge pressure increased by „tuning“
K Readout in display
On/off ratio (actuation) of charge pressure control solenoid valve
-N75
test, page 23-22
test charge pressure, page 23-22
OCTAVIA
test charge
Edition 12.00
S00.5111.54.20