Porsche 928 Workshop Manual page 73

03
Maintenance, Self-diagnosis
928
a
Measure the voltage between pin 1 and ground.
The voltage will be in the range of approx. 150
mV - 900 mV , according to the mixture com-
oosition.
Check the cable harness to the LH control unit
with reference to the circuit diagram.
03 - 26
Trouble-shooting
Printed in Germany-XX, 1906