Porsche 928 Workshop Manual page 510

28
Ignition System
928
12. Check voltage at ignition coil terminal 1
against ground.
Voltage correct,
I Replace control unit.
13. Check dwell angle (short test on warm
engine).
Dwell angle 25 . . . 39O at 1500 + 50 rpm
Dwell angle 33 . . . 40' at 5000 +_ 50 rpm
Dwell angle correct?
ly- Ino
28 -18
Troubleshooting Electronic Ignition System
Printed in Germany
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