Saab 9000 - Page 82

Fuel from purge
<10%
of
·
consumption.
Stop ordinary purge.
Store reference values
- short term fuel trim
- idle air control
Activate purge valve
and increase flow.
Short term fuel trim de-
creases
>
6% or idle air
control decreases
>
1 %.
Stop purge.
Function monitored this
trip.
Resume to ordinary
purge.
No
Yes
2
3
4
5
Yes
7
9
6
7
No
8
Yes
E
Saab 9000
Technical Description 79
No
Store reference value
- idle air control.
Stop purge.
Idle air control in-
creases
>
1 %.
Fault criteria for
EVAP fulfilled.
I