2008-2010 Kawasaki KFX450R Factory Service Manual, Page 100Get this manual
FUEL SYSTEM (DFI) 3-43 Inlet Air Pressure Sensor (Service Code 12)
Inlet Air Pressure Sensor Output Voltage Inspection NOTE
The output voltage changes according to the local atmospheric pressurethe output voltage ECU in the Measurevoltage inspectionat thethe following.same way as input Note
Special ToolNeedle Adapter Set: 57001-1457 Inlet Air Pressure Sensor Output Voltage Connections to ECU Connector Meter (+) Meter () YBL lead (terminal 32) BRBK lead (terminal 9)
OFF Turn the ignition switchwithin the usable range, check the If the output voltage is ECU for its ground, and power supply (see ECU Power Supply Inspection)If the ground and power supply are good, replace the ECU (see ECU RemovalInstallation)If the output voltage is out of the usable range, check the wiring