Pulse Generator - KTM 990 Adventure Repair Manual

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2

Pulse generator

The signal from the pulse generator
diagnostics tool.
In case of an error, perform the following tests:
– Check the pulse generator resistance between the two cables at
1
connector AT (pulse generator).
– Disconnect connectors AL and AT and check connector AL
(yellow/blue and yellow/white cables) for continuity to the control
unit (control unit disconnected).
– If no error is found, check the distance between the pulse generator
and the pulse generator wheel (see Chapter 6).
T
HE PICKUP
DIFFERENTIATED BY THE POSITION OF THE
INTERCHANGED
Lambda probes
The signal from the lambda probes
diagnostics tool.
NOTE:
– The engine must be at operating temperature in
– At speeds below approx. 5000 rpm the signal surges rapidly
between 0.2 and 0.8 volt, at higher speeds the signal fluctuates
slightly; if the signal fails to surge below 5000 rpm but is in the
preset range, the injection system has an electrical defect.
– Generally, the lambda probe signal must fall between 0.2 and 0.8
volt.
In case of an error, perform the following tests:
– Check the ground supply (black cable) from the sensor connector CA
or CA1.
– Check the wiring and the connector for continuity to the control unit
(control unit disconnected).
Lambda probe heater
The lambda probe heater can be tested and controlled with the KTM
diagnostics tool.
In case of an error, perform the following tests:
– Check the positive supply (with the ignition on, orange cable) at
sensor connector CA or CA1.
– Check the wiring and the connector for continuity to the control unit
(control unit disconnected).
– Coil resistance of the lambda probe heater: 13 Ω at 20º C
(input)
1
190 - 290 Ω at 20ºC
! CAUTION
RING FOR THE CARBURATOR
.
(input)
2
(output)
can be scanned with the KTM
!
AND INJECTION VERSIONS
" ";
TOOTH GAP THEY CANNOT BE
can be scanned with the KTM
idle.
ARE