Off Position - Porsche 911 TURBO - 1989 Workshop Manual

CHECKING AND ADJUSTING OFF POSITION OF AIR FLOW SENSOR PLATE
Checking
1. Pull off plug for safety switch on mixture con-
trol unit.
Turn on ignition and off again after approx.
10 seconds.
Upper edge of air flow sensor plate must be
flush with beginning of cone (relief funnel,
top) or max. 0, 5 mm higher (strive for lower
position) .
2. Air flow sensor plate must be level and must
not protrude beyond cylindrical section of ven-
turi at any point of its periphery.
Adjusting
An excessively high air flow sensor plate can be
corrected. This is done by driving down the stop
spring guidepin accordingly, using a mandrel and
a light hammer.
Note
Adjust very carefully, so that guidepin is not
driven too deep. A void frequent adjustments
in both directions, since pressfit of pin will not
hold.
Checking and Adjusting Off Position of Air Flow Sensor Plate 25 -6a
Printed in Germany -III, 1978