Porsche 944 Workshop Manual page 20

03
Press the green key until the ctear symbol
ap-
pears on the function display. This activates
the first testing step and the injection valves
are activated.
Display:
The injection valves must all operate audibly
or tangibly.
Note:
If later attempts are made to start the engine,
starting difficulties may occur because a
slight
residual amount of fuet is injected during this
testing step.
The testing steps remain in operation until the
green key is again pressed on the tester and
the clear symbol appears.
03 - 8
Maintenance, Self-diagnosis
The next testing step is initiated by again
pressing the green key.
Refer to the test code list for the sequence
of
testing steps.
Actuator and input signal function checking
Printed in Germany - XVI, 1987
944