Ignition Timing; Immobiliser And Tyre Pressure Monitoring System <Tpms> Control Module; La Mbda 02 Sensor; Long Term Fuel Trim - Triumph 2012 Tiger 800 Service Manual

Fuel System/Engine Management
Idle fueling
Adjustment of fueling at idle to suit the actual air inducted.
Idle reference speed
The target idle speed as determined by the Electronic
Control Module <ECM>. (lt should be the same as the
actual idle speed if the motorcycle is operating correctly.>
Ignition advance
The timing of the ignition at the spark plug relative to top
dead centre <TDO.
Ignition switch position
The 'ON' or 'OFF' position of either or both the ignition
switch and the engine stop switch.

Ignition timing

Same as 'ignition advance'.
Immobiliser and Tyre Pressure Monitoring
System <TPMS> Control Module
The control module for the I mmobiliser and TPMS
system.
lniector pulse time
The time during which an injector remains open (i.e.
delivering fuel>.
0 2
Lambda Sensor
The Lambda sensor measures the Oxygen levels in the
exhaust gases and feeds this information to the ECM.
Based on this information, adjustments to air/fuel ratio are
made.

Long term fuel trim

Fueling after adapting to the engine's long term fueling
requirements <closed loop only). See also short term fuel
trim.

MAP sensor

Manifold Absolute Pressure (the air pressure in the inta ke
system). Measured after the throttle valves. This reading is
compared to the ambient pressure reading to allow the
ECM to calculate engine load.
10.14
Service Manual Tiger 800 and Tiger SOOXC
-
MIL
Malfunction Indicator Lamp.
Illu minates when most Diagnostic Trouble Codes <DTCs)
are set.

Open circuit

A break in an electrical circuit - current cannot flow.

Over temp

High temperature within the Electronic Control Module
<ECM> caused by an internal or external failure.

Primary throttle position sensor

Sensor for the primary <lower) throttle position.

Primary throttle stepper motor

Stepper motor used to vary th rottle opening at idle and
when the engine is cold.

Purge valve duty cycle

The time the purge valve is open in an open/close cycle,
expressed as a percentage of the cycle time.

Road speed sensor

Gearbox mounted sensor which delivers information to
the ECM. This is converted to the road speed value that is
then displayed on the speedometer.
Non ABS models on ly. ABS models use the rear ABS
wheel speed sensor to supply road speed sensor to the
ECM.

Sensor supply voltage

Supply voltage to the system sensors <nominally 5 Volts>.