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Contamination of the HEGO sensor can re-
sult from the use of an inappropriate RTV
sealer or silicone spray products. Do not use
silicone sprays or hoses which are assem-
bled using silicone lubricants. Always use
“oxygen sensor safe” RTV sealant for repair
procedures. Silicon contamination will cause
a high but false HEGO signal voltage (rich
exhaust indication). The ECM will then re-
duce the amount of fuel delivery to the
engine, causing a severe driveability prob-
lem. If silicone contamination is suspected,
remove and visually inspect the sensor ele-
ment. If contaminated, the portion of the
sensor exposed to the exhaust stream will
have a white powdery coating. Always be
sure to eliminate the cause of contamination
before replacing the sensor.
3. Carefully place the Fuel Rail over the injec-
tors, sliding along the Fuel Rail Bracket.
Ensure the Fuel Injectors and O-rings are
properly seated.
4. Align holes on Fuel Rail with holes in the
bracket and insert screws. Torque to 7-9
ft.lbs. (9.5-12.2 Nm).
5. Connect Fuel Pressure Sensor electrical con-
nection.
6. Insert fuel inlet port fitting and secure with pin.
7. Reconnect negative battery cable. Turn igni-
tion key to ON and check for leaks at the inlet
and outlet fittings using a commercial grade
soapy solution or an electronic leak detector.
If leaks are detected make repairs.
8. Start engine and check leaks. If leaks are
detected make repairs.
9. Check for MIL illumination.
XVI. FUEL INJECTOR
REMOVAL PROCEDURE
1. Relieve the LPG fuel system pressure. Refer
to XVIII. LPG FUEL SYSTEM PRESSURE
RELIEF.
2. Disconnect the negative battery cable.
3. Remove the Fuel Rail. Refer to XV. FUEL
RAIL.
4. Remove Injector electrical connector.
5. Remove Clip Retaining Fuel Injector (connect-
ing it to the Injector Adapter).
The Fuel Injectors are held in place with an
internal "C" ring. When removing the fuel in-
jectors, pull the injectors straight out. Do not
pry the injectors with a screwdriver or prybar,
as this can damage the injectors or injector
adapters.
6. Remove Injector.
INSTALLATION PROCEDURE
1. Inspect the O-rings on the Injector and Injector
Adapter and replace if necessary. Lubricate
with Vaseline or petroleum jelly.
Contamination of the HEGO sensor can re-
sult from the use of an inappropriate RTV
sealer or silicone spray products. Do not use
silicone sprays or hoses which are assem-
bled using silicone lubricants. Always use
“oxygen sensor safe” RTV sealant for repair
procedures. Silicon contamination will cause
a high but false HEGO signal voltage (rich
exhaust indication). The ECM will then re-
duce the amount of fuel delivery to the
engine, causing a severe driveability prob-
lem. If silicone contamination is suspected,
remove and visually inspect the sensor ele-
ment. If contaminated, the portion of the
sensor exposed to the exhaust stream will
have a white powdery coating. Always be
sure to eliminate the cause of contamination
before replacing the sensor.
2. Install the Fuel Injectors into the Fuel Injector
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