Adjusting accelerator position sender G79 — AUDI

Adjusting
accelerator position sender
G79
Procedure
Left-hand drive vehicles:
Vehicles up to 01.1999: accelerator pedal stop
Item
installed (marking: 2 grooves).
Vehicles from.02.1999: accelerator pedal stop
Item
installed (marking: 1 groove).
Fit cable cam as shown in illustration if
accelerator position sender
G79
has been removed
Install
accelerator position sender
G79
with pre-assembled cable cam.
Cable cam with cable guide
Bracket for
accelerator position sender
G79
Right-hand drive vehicles:
Accelerator pedal stop installed
Item
.
Fit cable cam as shown in illustration if
accelerator position sender
G79
has been removed
Install
accelerator position sender
G79
with pre-assembled cable cam.
Vehicles up to 01.1999:
Release ashtray from centre console by pressing small lever
arrow
.
Take out ashtray and remove cover for diagnostic connector.
With ignition switched off, connect
vehicle diagnostic, testing and information system
VAS 5051B
.
Vehicles from 02.1999:
With ignition switched off, connect
vehicle diagnostic, testing and information system
VAS 5051B
.
All vehicles (continued):
Display on
VAS 5051B
:
Switch on ignition.
Select
Vehicle self-diagnosis
from the list
item 1
.
Display on
VAS 5051B
:
From menu
1
, select vehicle system
“01 - Engine electronics”
and press
→
key to continue.
Display on
VAS 5051B
:
From menu
1
, select diagnosis function
“Measured values”
and press
→
key to continue.
Display on
VAS 5051B
:
Press key
2
on keypad
1
to select
“Display group 002”
and confirm entry by pressing key
Q
.
Display on
VAS 5051B
:
Check display in display zone
2
.
Accelerator pedal not depressed: specification 0.0 %.
Press accelerator pedal down slowly.
Readout should increase steadily until it reaches 100 % (accelerator pedal fully depressed).
Note
The 100 % display should be reached exactly when the pedal contacts the full throttle stop. If 100 % is reached before the pedal contacts the stop, turn back the threaded collar accordingly.
Check display in display zone
3
.
Accelerator pedal not depressed: specification 0 01 00.
Accelerator pedal depressed: specification 0 00 00.
If initial or final specifications are not attained, turn threaded section of cable guide at cable cam.
Measure difference in distance from floor of accelerator pedal and brake pedal.
Specification: 53 mm
Vehicles with automatic gearbox:
The adjustment procedure is the same as for vehicles with manual gearbox except for the following points:
Vehicles up to 01.1999: when making the adjustment, the accelerator pedal stop for vehicles with manual gearbox must be installed (marking: 2 grooves).
With this stop installed, adjust full throttle position (readout in display zone
2
: 100%).
After performing adjustment procedure, fit accelerator pedal stop for vehicles with automatic gearbox (marking: 1 groove).
Vehicles from 02.99: depress accelerator pedal to full throttle stop (readout in display zone
2
: 100%). Do not depress
kick-down switch
F8
.
Then check
kick-down switch
F8
in display zone
3
:
Accelerator pedal not depressed: specification 0 01 00.
Accelerator pedal depressed: specification 0 00 00.
Accelerator depressed past kickdown point: specification 0 10 00.