Removing And Installing Heated Wire Air Flow Sensor - Porsche 928 Workshop Manual

928
LH-Jetronic
24
REMOVING AND INSTALLING HEATED WIRE AIR FLOW SENSOR
Removing
1. Remove air intake hoses
2. Take off upper air cleaner housing and
remove hose on blowoff switching valve.
3. Unscrew unlosable hexagon head screws
(13 mm wrench size) in lower air cleaner
housing and remove lower housing with
heated wire air flow sensor.
4. Pull off both multiple pin plugs.
5. Loosen bottom hose clamp and take heated
wire air flow sensor off of lower air cleaner
housing.
Installing
1. Check O-ring in air guide housing for damage
and correct fit. Lubricate O-ring with silicone
grease, e. g. Bosch Ft 2~2.
2. Insert heated wire air flow sensor that
access to adjusting bore for idle speed
potentiometer with Special Tool 9187 is
guaranteed.
Align air flow sensor if necessary.
p4- .-\-a&+ .
7
3. Install and mount lower air cleaner
housing and then tighten bottom hose
clamp.
Printed in Germany VI I I, ,984
Removing and Installing 24 125
Heated Wire Air Flow Sensor