Golf GL L4-2.0L (AEG) (2001)
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Idle Speed: Adjustments
Idle Speed, Adaptation
In exceptional circumstances (e.g. customer complaints concerning droning noises and vibrations at idle speeds) it is OK to adjust the idle speed slightly.
Special tools and equipment
V.A.G1551 Scan Tool (ST) or VAG1552 mobile scan tool with VAG1551/3 adapter cable
Test requirements
-
No DTCs stored in DTC memory. Refer to "Displaying and Reading Trouble Codes/With Manufacturer Scan Tool/Check DTC Memory (Function
02)" See: Powertrain Management/Computers and Control Systems/Testing and Inspection
-
Engine coolant temperature at least 85 °C, see display group 004, display field 3.
Test sequence
-
Connect VAG1551 (VAG1552) Scan Tool (ST). Refer to "Scan Tool Testing/VAG1551/Functional Check" See: Powertrain
Management/Computers and Control Systems/Testing and Inspection
-
Turn on ignition and press buttons -0- and -1- to insert "Engine Electronics" address word 01. Engine must be running at idle when performing this
step.
Indicated on display
Rapid data transfer
HELP
Select function XX
-
Press buttons -1- and -1- to select "Login Procedure" function 11 and press -Q- button to confirm input.
Indicated on display
Login procedure
Input code number XXXXX
-
Press buttons -0-, -1-, -2-, -8- and -3- to select Login code 01283 and press -Q- button to confirm input.
Indicated on display
Data transfer fault
-
Turn off ignition and repeat procedure.
Indicated on display
Rapid data transfer
HELP
Select function XX
-
Press buttons -1- and -0- to select "Adaptation" function 10 and press -Q- button to confirm input.
Indicated on display
Adaptation
Insert channel number XX
-
Press buttons -0- and -1- for channel number 1 and press -Q- button to confirm input.
Indicated on display
Channel 1
Adaptation XXX ->
XXX RPM
XXX RPM text text
-
Change specified speed in display field 2 in jumps of 10 RPM using following buttons:
-
VAG1551: buttons 1 and 3
-
VAG1552: buttons up arrow and down arrow
Indicated on display
