68 Technical Description
Fault handling,
(II) fuel system, emission related misfire
A diagnostic trouble code is generated when the fault
criteria for closed loop, adaptation or emission-rela-
ted misfiring are satisfied.
To facilitate fault diagnosis a special code is genera-
ted at the same time if there is less than
1
0 litres of
fuel in the tank.
In order for the diagnostic trouble code to be cleared
without further action, as well as any special code for
low fuel level that may also have been generated,
1
driving
cycle carried out under the same conditions
as when the fault first occurred, or 80 driving cycles
without the fault recurring, must be completed.
The CHECK ENGINE lamp (MIL) will light up if the
fault occurs again within 80 driving cycles.
For the CHECK ENGINE lamp (MIL) to go out by it-
self, 3 consecutive driving cycles carried out under
similar conditions as when the fault first occurred
must be completed without the fault recurring.
For the diagnostic trouble code to be cleared, as well
as any special code for low fuel level that may also
have been generated, 40 faultless warm-upcycles
must also be completed.
Saab9000
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