Porsche 928 Workshop Manual page 452

Fuel System 25
REMO\'lN(; AND INSTALLING MIXTI'RE CONTROL KiNI?
Remox,ing
1. Disconnect battery ground wire from spare wheel 7. Detach intake pipes at bottom and remove
well. together with air distributor.
2. Remove air cleaner asremblv.
3. Remove vacuum hose between intake branch
and brake booster.
4. Detach and remove all fuel injection lines,
counterholding on fuel injectors.
5. Detach and remove hose between auxiliary air
regulator and air distributor. fuel supply line
on cold start valve and. on cars with an auto-
matic transmission. vacuum line.
6. Loosen upper hose clamp on connector between
air distributor and throttle housing.
8. Detach fuel lines:
A - Control pressure line to control pressure
regulator
B - Fuel feed
C - Fuel return
D - Fuel feed/cold start valve
E - Fuel return/control pressure regulator
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air flow sensor and air guide housing. and re-
move mixture control unit from above.
Printed in Germany - 1, 1978
Removing and Installing
Mixture Control Unit
25 - 15