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FUEL SYSTEM/ENGINE MANAGEMENT 9
THROTTLE POSITION SENSOR
CAUTION: If the throttle position sensor
•
is replaced, the electronic value of the
closed throttle position must be adjusted using the
Triumph service diagnostic tool.
If the closed throttle position value is not reset, fuel
consumption, idle speed and engine performance
will be adversely affected.
For details of how to reset the closed throttle
position value, refer to the `adjustment'
instructions elsewhere in this section.
Removal
1.
Remove the seat and disconnect the battery,
negative (black) lead first.
2.
Remove the throttle bodies as described
elsewhere in this section.
3.
Release the screws securing the sensor to the
right hand throttle body. Remove the sensor.
1.
Right Hand Throttle Body
2.
Throttle Position Sensor
Inspection
1.
Check the electrical connectors for pin damage
and corrosion. Renew as necessary.
2. Check the sensor body for damage, splits, cracks
etc. Renew as necessary.
Assembly
1.
Locate the sensor to the throttle body ensuring
that the `D' shaped extension of the throttle
spindle engages in the mating recess in the
sensor.
yam."
1.
`D' Shaped Spindle Extension
2.
`D' Shaped Switch Recess
2.
Tighten the sensor fixings to
2 Nm.
3.
Refit the throttle bodies as described elsewhere in
this section.
4.
Reconnect the battery, positive (red) lead first.
5.
Adjust the closed throttle position electronic value
using the Triumph service diagnostic tool.
NOTE:
•
For details of how to reset the closed throttle
position value, refer to the diagnostic tool
instructions elsewhere in this section.
6.
Refit the seat.
IDLE AIR CONTROL VALVE
Removal
1.
Remove the seat and disconnect the battery,
negative (black) lead first.
2.
Remove the fuel tank as detailed elsewhere in
this section.
3.
To ensure that they are returned to the same
positions on assembly, note the position of each
hose leading from the idle air control valve to the
throttle bodies. Disconnect the hoses at the
valve.
4.
Early Models Only:
Release the screw securing
the valve bracket to the lower side of the throttle
body and remove the valve assembly.
Late Models Only:
Release the two screws
securing the valve to the upper side of the throttle
body and remove the valve assembly.
9.97