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Fuel
System
5. Disconnect 2-pole plug at mixture control
and turn on ignition (fuel pump runs).
FROM 1978
MODELS,
TURBO
3,3
ALSO
MEASURING
CONTROL
PRESSURE
"WARM
WITH
FULL
THROTTLE
ENRICH-
MENT"
CHECKING
CONTROL
PRESSURE
"WARM-
FULL
THROTTLE
ENRICHMENT"
1. Check control pressure "warm" (fuel pumps must
be running) .
2. Disconnect pressure hose for warm-up regulator
at thxottle housing.
6. Move change-over cock to position 2.
The control pressure will now rise slowly and
must reach the specified value when the warm-
up regulator has been controlled. The off time
varies according to ambient temperature. Re-
place warm-up governor if necessary.
3. Connect tester VW 1274 with (locally made)
adapter on disconnected hose (to warm-up re-
gulator) .
Important
After test it is essential to reconnect two-pole plug
to mixture control and, for 930/50, genuine relay
on fuse/relay plate.
25 -14
IV. 1981 -Printed
in Germany
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