TT Quattro Roadster L4-1.8L Turbo (AMU) (2002)
Idle Speed: Testing and Inspection
Idle Speed, Testing
Idle Speed, Checking
Special tools and equipment
-
VAS5051 with VAG5051/1
or
-
VAG1551 with VAG1551/3B
Test requirements
-
Exhaust system free of leaks.
-
Coolant temperature at least 80 degree C.
-
Electrical consumers switched off (radiator fan must NOT run during test).
-
A/C switched off.
-
No pressure gauges (e.g. for fuel pressure test) connected.
NOTE:
-
Idle speed cannot be adjusted.
-
Idle speed is checked during basic setting of the engine.
-
During basic setting, the Evaporative Emission (EVAP) canister purge regulator valve (EVAP valve -N80-) is closed and the A/C compressor is
switched off
Test sequence
-
Check DTC Memory. There must not be any DTCs stored. Repair malfunctions if necessary, erase DTC memory, switch engine off and start
again, road test vehicle and check DTC memory again as a control measure.
-
Let engine continue to run at idle.
CAUTION: Electric radiator fan must not run.
Indicated on display:
Rapid data transfer
HELP
Select function XX
-
Press buttons -0- and -4- to select "Initiate Basic Setting" and press -Q- button to confirm input.
Indicated on display:
System in Basic Setting
Q
Input display group number XXX
-
Press buttons -0-, -5- and -6- to select "display group number 056" and press -Q- button to confirm input.
Indicated on display: