Functional Positions Of Throttle Valve Control Part; The Lower Mechanical Limit Stop; The Emergency Running Position - Audi V6 BITURBO Manual

Functional positions of throttle valve control part (linear
representation)
The engine control unit recognises four key functional positions of the throttle valve control part.
•

The lower mechanical limit stop

The throttle valve is closed. This
position is required to adapt the angle
sender.
• The lower electrical limit stop
is defined by the control unit and is
located just below the lower
mechanical limit stop. During
operation, the throttle valve closes no
further than the lower electrical limit
stop. This prevents the throttle valve
working its way into the throttle valve
housing.
•

The emergency running position

is the position of the throttle valve in
the deenergised state and ensures that
air flow is sufficient if any of the
relevant electronic accelerator functions
fails. Idling speed is higher - approx.
1000 rpm - and uneven.
Very limited vehicle operation is
possible.
Lower mechanical limit stop
SSP 198/24
Position of lower electrical limit stop
SSP 198/22
Emergency running position
SSP 198/21
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