911 Targa 4S (997) F6-3.8L (2007)
Air cleaner housing and pressure pipe
2. Check vacuum using tester 9160/1.
2.1.
Tester 9160/1 (pressure gauge) must be connected. To do this, pull the adapter -2b- (or hose piece if an adapter -2b- is not used) together with
the thin vacuum line out of the branch piece -2- of the vacuum line -1-.
Checking the vacuum
2.2.
Tester 9160/1 must be connected (plugged in) to the branch piece -2-.
2.3.
Start the engine and allow it to idle (engine speed is 650 750 rpm/ambient temperature is 20° 25° C). After a waiting time of approx. 10
seconds, read off the existing vacuum on the pressure gauge.
Minimum value: 650 mbar.
2.4.
Then remove the tester 9160/1 and re-connect the adapter -2b- (or hose piece, if no adapter -2b- is used) to the branch piece -2-.