Test Air Mass Meter -G70 - Skoda OCTAVIA MK1 Service Manual

Test air mass meter -G70-

Special tools and workshop equipment required
t Vehicle system tester V.A G 1552 with cable -V.A.G 1551/3-
t Handheld multimeter, e.g. -V.A.G 1526 A -
t Voltage tester, e.g. - V.A.G 1527-
t Measuring tool set -V.A.G 1594 A -
t Test box -V.A.G 1598/22-
Check for proper operation
Test conditions
l Fuse no. 43 o.k.
l Coolant temperature at least 80°C.
All electrical consumers, e.g. lights and
l rear window heater, must be switched
off.
If vehicle is equipped with air
l
conditioning, this must be switched off.
On vehicles with automatic gearbox the
l selector lever must be in position "P" or
"N".
l Vehicle standing, engine idling
Select 08 for the function "read
–
measured value block" and further select
display group 001.
The following appears in the display:
In display field 2 check whether the coolant
–
temperature is above 80°C.
Change to the display group 2 by pressing
–
the ↑ button.
The following appears in the display:
The drawn in air mass is displayed in the display field 2
(Milligram per stroke).
Specified value: 76 up to 164 mg/s
If the specified values are not reached or if a fault regarding
–
the air mass meter is stored in the fault memory, check the
voltage supply of the air mass meter
Check the voltage supply of the air mass meter on vehicles ►
Reading measured value block 1
->
850/rpm
→ Anchor or → Anchor.
208
90°C 0.80 V
Reading measured value
block 2
->
850/rpm 120 mg/s
km/s 0100
0000010
0