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Self-Diagnosis
Service
Parts
Codes
Subthrottle
32
sensor
Stick Coil
51
#1 (Ignition
Coil)*
Stick Coil
52
#2 (Ignition
Coil)*
Stick Coil
53
#3 (Ignition
Coil)*
Stick Coil
54
#4 (Ignition
Coil) *
Subthrottle
62
Valve
Actuator
Note:
(1) α – N Method: the DFI control method from medium to heavy engine load. When the engine load
is light like at idling or low speed, the ECU determines the injection quantity by calculating from the
throttle vacuum (vacuum sensor output voltage) and engine speed (crankshaft sensor output voltage).
This method is called D-J method. As the engine speed increases, and the engine load turns middle
to heavy, the ECU determines the injection quantity by calculating from the throttle opening (throttle
sensor output voltage) and the engine speed. This method is called α – N method.
* This depends on the number of stopped cylinders.
Output Signal Usable
Range or Criteria
Subthrottle Sensor
Output Voltage
0.15 ∼ 4.85 V
The ignition coil primary
winding must send
signals (output voltage)
continuously to the ECU.
The ignition coil primary
winding must send
signals (output voltage)
continuously to the ECU.
The ignition coil primary
winding must send
signals (output voltage)
continuously to the ECU.
The ignition coil primary
winding must send
signals (output voltage)
continuously to the ECU.
The actuator operates
open and close of the
subthrottle valve by the
pulse signal from the
ECU.
FUEL SYSTEM (DFI) 3-65
Backups by ECU
If the subthrottle sensor system fails (the signal
is out of the usable range, wiring short or open),
the actuator locks sub throttle valve at full open
position.
If the ignition primary winding #1 has failures (no
signal, wiring short or open), the ECU shuts off
the injector #1 to stop fuel to the cylinder #1,
though the engine keeps running.
If the ignition primary winding #2 has failures (no
signal, wiring short or open), the ECU shuts off
the injector #2 to stop fuel to the cylinder #2,
though the engine keeps running.
If the ignition primary winding #3 has failures (no
signal, wiring short or open), the ECU shuts off
the injector #3 to stop fuel to the cylinder #3,
though the engine keeps running.
If the ignition primary winding #4 has failures (no
signal, wiring short or open), the ECU shuts off
the injector #4 to stop fuel to the cylinder #4,
though the engine keeps running.
If the sub throttle actuator fails (the signal is out
to the usable range, wiring short or open), the
ECU stops the current to the actuator.

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   Also See for Kawasaki Ninja ZX–6R

This manual is also suitable for:

Ninja zx-6rrZx–6rZx-6rrZx-6rr 2003Zx-6r 2003Ninja zx-6r 2003-2004 ... Show all

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