
(d) Disconnect the water bypass hose (from the water outlet)
from the throttle body.
(e) Remove the throttle body and gasket.
INSTALLATION HINT: Use a new gasket.
INSPECTION OF THROTTLE BODY
Throttle Body
1. CLEAN THROTTLE BODY
(a) Using a soft brush and carburetor cleaner, clean the cast
parts.
(b) Using compressed air, clean all the passages and apertures.
NOTICE: To prevent deterioration, do not clean the throttle
position sensor, dashpot and throttle opener.
2. INSPECT THROTTLE VALVE
(a) Disconnect the throttle opener vacuum hose from the throttle
body.
(b) Apply vacuum to the throttle opener.
(c) Check that there is no clearance between the throttle stop
screw and throttle lever when the throttle valve is fully closed.
(d) Reconnect the throttle opener vacuum hose to the throttle
body.
Throttle Stop Screw
Vacuum
No
Clearance
Disconnect
Throttle Lever
Throttle Position Sensor
1. INSPECT THROTTLE POSITION SENSOR
(See on–vehicle inspection)
Ohmmeter
E2
IDL
VTA
VC
2. IF NECESSARY, ADJUST THROTTLE POSITION
SENSOR
(a) Loosen the 2 set screws of the sensor.
Pry
Disconnect
P12011
P11978
P12047
P12010
209131
P11463