Dynojet Compressed Air Air/Fuel Ratio Module - Manual (Page 31)

O N - B O A R D D Y N O I N S T A L L A T I O N
Installation
Version 5 Compressed Air Air Fuel Ratio Module Installation and User Guide
A-5
A DJUSTING THE A IR F LOW
To ensure accurate readings, adjust the air flow as necessary to maintain 35L/min. If
you are unable to adjust the air flow to 35L/min. for each sample tube, clean the
pump then try to adjust the air flow again. Refer to “Pump Maintenance—On Dyno”
on page 2-9 for more information.
Adjust the air flow at the end of the exhaust probe to 35 L/min.
1
Attach six inches of the silicon tubing from the top port on the flow meter to the
copper sample tube.
2 Loosen the lock nut.
3 Turn on the air pump with the control panel.
4 Rotate the vacuum generator exhaust port until the flow meter reads
35 L/min.
5 Tighten the lock nut.
Note: Make sure not to rotate the vacuum generator exhaust port when
tightening the lock nut.
6 Remove the air flow meter and the six inches of silicon tube.
Note: Periodically check the air flow and adjust as necessary to maintain 35 L/min.
Figure A-4: Adjusting the Air Flow—On Dyno
copper sample
tube
flow meter
sensor
vacuum generator exhaust port
and lock nut
silicon tube