Porsche 928 Workshop Manual page 550

928 Ignition System
28
TEST POINT 1
Checking Ground and
Plug Connections
Note:
Go through test points in given sequence,
especially if the complaint concerns no or
poor engine running.
1. Ground connection between engine and
body at bottom right.
1.2 Output ground connection on camshaft
housing near blowoff switching valve.
1 .l Ground connection of ignition control
units next to right ignition coil.
1.3 Electronic ground connection on
camshaft housing near cylinder 2.
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a
Printed inGermany - VIII, 1984
Troubleshooting Electronic Ignition System
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