3-48 FUEL SYSTEM (DFI)
Inlet Air Pressure Sensor (Service Code 12)
Never drop the sensor, especially on a hard surface.
Such a shock to the part can damage it.
Remove the fuel tank (see Fuel Tank section in this chap-
Disconnect the inlet air pressure sensor connector [A].
Unscrew the inlet air pressure sensor nut [B] and remove
Disconnect the vacuum hose from the sensor.
The inlet air pressure sensor is the same part as the
atmospheric pressure sensor except that the inlet air
pressure sensor has a vacuum hose and different
Route the vacuum hose correctly (see Cable, Wire, and
Hose Routing section in the Appendix chapter). Make
sure it doesn't get pinched or kinked.
Install the inlet air pressure sensor [A].
The stopper [B] must not be on the sensor holder [C].
Atmospheric Pressure Sensor [D] (for reference)
Frame Bracket [E]
Tighten the inlet air pressure sensor nut.
Install the fuel tank (see this chapter).
Input Voltage Inspection
Be sure the battery is fully charged.
The inspection is the same as "Input Voltage Inspec-
tion" of the throttle sensor or the atmospheric pressure
Turn the ignition SW OFF.
Remove the ECU (see this chapter). Do not disconnect
the ECU connector.
Connect a digital voltmeter [A] to the connector [B], using
two needle adapters [C].
Special Tool - Needle Adapter Set: 57001–1457
Measure the input voltage to the inlet air pressure sensor
with the engine stopped, and with the connectors joined.