Throttle Sensor (Service Code 11)
The throttle sensor is a rotating variable resistor that
change output voltage according to throttle operating.
The ECU senses this voltage change and determines fuel
injection quantity, and ignition timing according to engine
rpm, and throttle opening.
Input Terminal [A]
Output Terminal [B]
Ground Terminal [C]
Throttle Sensor Replacement
Never drop the throttle sensor [A], especially on a
hard surface. Such a shock to the throttle sensor
can damage it.
These procedures are explained on the assumption that
the intake and exhaust systems of the engine are in
When adjusting the throttle sensor, use a digital voltage
meter which can be read the third decimal place. The
DC voltage accuracy must be less than ±0.05% reading
and ±4 digits at DC 1 V.
Read the manufacture's instructions thoroughly before
using the meter, incorrect values may cause improper
Remove the throttle body assy (see Throttle Body Assy
Check the paint on the stop screw [A] and make sure
that the stop screw has not been adjusted. If stop screw
has been adjusted, throttle body assy has to be replaced.
Don't tamper with stop screw.
Throttle Sensor Mounting Screw [A]
Throttle Sensor [B]
FUEL SYSTEM (DFI) 3-31