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Output Voltage Inspection - Kawasaki Vulcan900 Classic LT Service Manual

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  • Contents

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3-52 FUEL SYSTEM (DFI)
Inlet Air Pressure Sensor (Service Code 12)
If the reading is within the standard range, remove the
fuel tank, and check wiring from ECU to the inlet pressure
sensor for continuity.
If wiring is good, check the output voltage of the inlet air
pressure sensor.

Output Voltage Inspection

•
Measure the output voltage at the ECU in the same way
as input voltage inspection. Note the following.
Inlet Air Pressure Sensor Output Voltage
Connections to ECU
(Other than Europe Models [A])
Meter (+) → Y/BL lead (terminal 7)
Meter (–) → BR/BK lead (terminal 22)
(Europe Models [B])
Meter (+) → Y/BL lead (terminal 8)
Meter (–) → BR/BK lead (terminal 28)
Output Voltage at ECU
Usable Range: 3.80 ∼ 4.20 V DC at the standard
○
The output voltage changes according to the local at-
mospheric pressure.
○
The sensor output voltage is based on a nearly perfect
vacuum in the small chamber of the sensor. So, the
sensor indicates absolute vacuum pressure.
If the output voltage is out of the usable range, replace
the sensor
If the output voltage is normal, check the inlet air pressure
sensor for vacuum other than 76 cmHg (abs), check the
output voltage as follows:
Downloaded from
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atmospheric pressure (101.32 kPa, 76
cmHg abs).
NOTE
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   Also See for Kawasaki Vulcan900 Classic LT

KAWASAKI VN900 CLASSIC Service Manual
KAWASAKI VN900 CLASSIC Service Manual 588 pages
Kawasaki VULCAN900 CLASSIC LT Service Manual
Kawasaki VULCAN900 CLASSIC LT Service Manual 300 pages

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