Porsche 928 Workshop Manual page 319

928 Table
of
contents
Volume I-A
0
Fuel supply
Page
Replacing fuel fifter - up to 1980 models
Removing and installing fuel pump
Checking delivery rate of fuel pump - CIS
Checking fuel pump delivery - AFC
Checking fuel pump delivery - LH-Jetronic, beginning with 1984 models
Hose diagram for CIS
Arrangement of check valves
Replacing check valve
Disassembling and assembling accelerator pedal
Removing and installing fuel tank
Removing and installing fuel intank (Japan)
Fuel level sensor, removing and installing
Activated charcoal cannister for removal of tonix substances
form fuel tank breather (diagram)
Calibrating the tank sensor system for model 89 onwards
Electronic fuel injection
AFC equipment table ......................
Testing and adjusting specifications
..............
Adjusting idle USA and Japan
................
Adjusting idle speed and CO - USA and Japan, 1983 models
Checking fuel pressure .....................
Removing and installing pressure regulator ..........
Removing and installing intake air sensor ...........
Removing and installing cold start valve ............
Removing and installing auxiliary air regulator .........
Removing and installing temperature sensor II ........
Removing and installing pressure damper ...........
Removing and installing fuel injectors .............
Disassembling / assembling fuel injector ............
Removing and installing fuel injectors .............
Removing and installing throttle housing ............
Checking and adjusting microswitches on throttle housing
Checking temperature sensor II ................
Checking temperature time switch (for cold start valve)
Checking auxiliary air regulator .................
Checking cold start valve ....................
Checking vacuum control ....................
Checking pressure regulator
Checking air flow sensor ....................
Checking pressure regulator ..................
20-l
20-2
20-3
20-4
20-5
20-6
20-8
20-9
20-10
20-12
20-14
20-15
20-17
20-19
24-01
24-1
24-3
24-6a
24-27
24-9
24-9
24-10
24-10
24-l 1
24-l 1
24-12
24-13
24-13
24-14
24-15
24-17
24-17
24-18
24-18
24-19
24-19
24-20
24-20
Table
of contents
Prinled in Germany - XXXI, 1993
1