Porsche 928 Workshop Manual page 109

928 Automatic Transmission/Gears, Valve Body
38
Condition:
Selector lever cannot be engaged in "R" and "P".
Cause/Correction:
a) With engine running
b) With engine stopped
1. a) Clean and service centrifugal governor
2. b) Service blocking piston in lower cover.
Condition:
Engine cannot be started with selector lever in "P" and "N".
Cause/Correction:
1. Adjust selector lever cable and starter interlock
switch.
2. Replace starter interlock switch.
Printed in Germanv VIII, 1984
Troubleshooting
38 119