Honda 1986 GoldWing GL1200A Manual page 84

CFI System
Pressure (PB) Sensors
(cont'd) - - - - - - - - - - - - - - - - - - -
Vacuum Hose Inspection
Remove the plug from the dead end hose and connect a
hand vacuum pump between the PB sensor and vacuum
hose as shown.
Start the engine. If the pointer of the tester does not
swing, checK for a blocked or collapsed vacuum hose, or
clogged Intake pipe air jet.
PB SENSOR
VACUUM HOSE
Connect the vacuum hose to the PB sensor and discon-
nect the vacuum hose from the 3-way Joint.
Connect a vacuum tester to the vacuum hose and apply
vacuum.
If vacuum decreases faster than 20 mm (7.8 in) Hg per
minute, check the vacuum hose for deterioration.
Thro"le(0th)Sensor~~~~~~~~~~~~~~~~~~
LED Inspection
Connect the inspection adapter between the ECU and
throttle sensor couplers and measure the input voltage
(see page 10-13).
Check for continuity between the white adapter lead and
the # 1 1 ECU coupler terminal.
With the sensor coupler disconnected check for no
continuity between the #11 ECU coupler terminal and
the body ground.
GREEN LEAD (-)
117~11
/
1~1
I
{' f
DIGITAL CIRCUIT TESTER
;
,
INSPECTION ADAPTER
,
Sensor resistance: 4-6 K ohms
Install a new sensor if the resistance is outside specifica-
tions.
Turn the ignition switch OFF. Disconnect the wire
harness coupler from the adapter. Measure the
resistance between the red and green adapter leads con-
nected to the coupler's sensor side
Check the sensor coupler for loose or poorly contacted
terminals.
Sensor Resistance Inspection
10·24