ELECTRONIC FUEL INJECTION (MULTI-PORT AND THROTTLE BODY) - 5E-17190-823225--1 1096
INSTALLATION
IMPORTANT: If the TP sensor is to be replaced
with a new unit, be sure to secure it in place with
the new screws which are included in the service
package.
1. Install TP sensor to throttle body using screws
with washers and Loctite 242 applied to threads.
Torque screws to 20 lb. in. (2 N·m).
73758
b
c
a
d
c
a - Throttle Body
b - Throttle Position (TP) Sensor
c - Screws With Lockwashers
d - Seal
2. Connect electrical connector to TP sensor.
3. Install throttle body, throttle linkage and flame ar-
restor as outlined in “Throttle Body.”
4. Start engine and check for TP sensor output volt-
age. It should be approximately .7 V at idle and
4.5 V at W.O.T.
Idle Air Control (IAC) Valve
NOTICE
Refer to “Service Precautions,” in “Repair
Procedures,” BEFORE proceeding.
REMOVAL
1. Remove flame arrestor, throttle cable and throttle
body as outlined in “Throttle Body.”
2. Disconnect electrical connector at idle air control
(IAC) valve.
73754
a
b
a - Throttle Body
b - Idle Air Control (IAC) Valve
3. Remove IAC from throttle body.
CLEANING AND INSPECTION
1. Remove and discard sealing O-ring from IAC
valve. Clean sealing surfaces, pintle valve seat,
and air passage with a carburetor cleaner to re-
move carbon deposits, being careful not to push
or pull on the IAC valve pintle. Force exerted on
the pintle might damage the worm drive. DO NOT
use a cleaner that contains the extremely strong
solvent methyl ethyl ketone.
NOTE: Shiny spots on the pintle, or seat, are normal
and do not indicate misalignment or a bent pintle
shaft.
2. Inspect the entire assembly for any obvious
physical damage.
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