Golf GTI L4-1781cc 1.8L SOHC (HT) (1985)
Idle Speed: All Technical Service Bulletins
CIS W/OXS System - New Checking/Adjusting Procedures
Applies To
GOLF
(U..S. models with manual trans. only)
1985
Group
25
Subject
CIS With OXS System
Part Identifier
N/A
Key Points
New checking/adjusting procedures
B
Number
85-02
April 17, 1985
Idle speed/ignition timing/OXS-duty cycle (CO value), checking/adjusting
Work sequence
Note
Idle speed, ignition timing and OXS-duty cycle (CO value) must be checked and adjusted together.
Check and adjust CO value only with OXS-duty cycle. CO measurement is only used for crosscheck.
Test conditions:
^
oxygen sensor connected
^
engine oil temperature minimum 80~C (176~F). Radiator fan must come on at least once
^
all electrical sources switched OFF (radiator fan and air conditioner must not be running)
^
pressure gauge not connected
^
if injection line system has been removed or replaced, run engine several times to 3000 rpm for about two minutes before starting checking
procedure
^
exhaust system must be free of leaks
-
connect tester VW 1367
Note
TDC sending unit must fit snug into transmission housing
-
remove cap from CO probe receptacle
-
connect CO tester to probe receptacle
^
hose must fit snug so there is no exhaust leak