LPG FUEL SYSTEM
MAZDA 2.0L AND2.2L ENGINES
S30FT, S35FT, S40FTS [E010];
H1.6FT, H1.8FT, H2.0FTS
(H30FT, H35FT, H40FTS) [F001];
S2.0-3.5FT (S40-70FT, S55FTS ) [F187];
H2.0-3.5FT (H40-70FT) [L177]
PART NO. 1580507 900 SRM 1125
SAFETY PRECAUTIONS
MAINTENANCE AND REPAIR
" When lifting parts or assemblies, make sure all slings, chains, or cables are correctly
fastened, and that the load being lifted is balanced. Make sure the crane, cables, and
chains have the capacity to support the weight of the load.
" Do not lift heavy parts by hand, use a lifting mechanism.
" Wear safety glasses.
" DISCONNECT THE BATTERY CONNECTOR before doing any maintenance or repair
on electric lift trucks. Disconnect the battery ground cable on internal combustion lift
trucks.
" Always use correct blocks to prevent the unit from rolling or falling. See HOW TO PUT
THE LIFT TRUCK ON BLOCKS in the Operating Manual or the Periodic Mainte-
nance section.
" Keep the unit clean and the working area clean and orderly.
" Use the correct tools for the job.
" Keep the tools clean and in good condition.
" Always use HYSTER APPROVED parts when making repairs. Replacement parts
must meet or exceed the specifications of the original equipment manufacturer.
" Make sure all nuts, bolts, snap rings, and other fastening devices are removed before
using force to remove parts.
" Always fasten a DO NOT OPERATE tag to the controls of the unit when making repairs,
or if the unit needs repairs.
" Be sure to follow the WARNING and CAUTION notes in the instructions.
" Gasoline, Liquid Petroleum Gas (LPG), Compressed Natural Gas (CNG), and Diesel fuel
are flammable. Be sure to follow the necessary safety precautions when handling these
fuels and when working on these fuel systems.
" Batteries generate flammable gas when they are being charged. Keep fire and sparks
away from the area. Make sure the area is well ventilated.
NOTE: The following symbols and words indicate safety information in this
manual:
WARNING
Indicates a condition that can cause immediate death or injury!
CAUTION
Indicates a condition that can cause property damage!
LPG Fuel System Table of Contents
TABLE OF CONTENTS
General ............................................................................................................................................................... 1
Hoses Replacement............................................................................................................................................ 1
LPG Tank Replacement..................................................................................................................................... 1
Remove ........................................................................................................................................................... 1
Install ............................................................................................................................................................. 1
Fuel Filter........................................................................................................................................................... 3
Remove ........................................................................................................................................................... 3
Clean and Inspect .......................................................................................................................................... 4
Install ............................................................................................................................................................. 5
Relief Valve Replacement .................................................................................................................................. 6
Remove and Install........................................................................................................................................ 6
Carburetor Repair.............................................................................................................................................. 6
Remove ........................................................................................................................................................... 6
Disassemble ................................................................................................................................................... 6
Clean .............................................................................................................................................................. 8
Assemble ........................................................................................................................................................ 8
Install ............................................................................................................................................................. 8
Fuel Injector Repair........................................................................................................................................... 9
Remove ........................................................................................................................................................... 9
Clean and Inspect .......................................................................................................................................... 9
Install ............................................................................................................................................................. 9
Governor Repair................................................................................................................................................. 9
Remove ........................................................................................................................................................... 9
Install ............................................................................................................................................................. 9
Regulator Repair................................................................................................................................................ 10
Remove ........................................................................................................................................................... 10
Install ............................................................................................................................................................. 11
Control System................................................................................................................................................... 11
Engine Control Unit (ECU)........................................................................................................................... 11
Remove....................................................................................................................................................... 11
Install......................................................................................................................................................... 11
Engine Coolant Temperature (ECT) Sensor................................................................................................. 12
Remove....................................................................................................................................................... 12
Install......................................................................................................................................................... 12
Camshaft Position (CMP) Sensor ................................................................................................................. 12
Voltage Check ............................................................................................................................................ 12
Intake Air Temperature (IAT) Sensor .......................................................................................................... 13
Remove....................................................................................................................................................... 13
Install......................................................................................................................................................... 13
Manifold Absolute Pressure (MAP) Sensor.................................................................................................. 14
Remove....................................................................................................................................................... 14
Install......................................................................................................................................................... 14
Oxygen Sensor ............................................................................................................................................... 14
Remove....................................................................................................................................................... 14
Install......................................................................................................................................................... 14
Throttle Position (TP) Sensor ....................................................................................................................... 15
Remove....................................................................................................................................................... 15
Install......................................................................................................................................................... 15
©2005 HYSTER COMPANY i
Table of Contents LPG Fuel System
TABLE OF CONTENTS (Continued)
This section is for the following models:
S30FT, S35FT, S40FTS [E010];
H1.6FT, H1.8FT, H2.0FTS (H30FT, H35FT, H40FTS) [F001];
S2.0-3.5FT (S40-70FT, S55FTS ) [F187];
H2.0-3.5FT (H40-70FT) [L177]
ii
900 SRM 1125 LPG Tank Replacement
General
This section has the repair procedures for the parts of the LPG fuel system used on the Mazda 2.0 liter and 2.2
liter engines.
Hoses Replacement
The hoses installed on LPG systems are specially When replacing the hose to the quick-disconnect fit-
made. Hoses that are made for use with hydraulic ting, make sure that it is the same length as the hose
oil will be damaged by LPG. When replacing the LPG it replaces. A hose that is the wrong length allows the
hoses, be sure to use only HYSTER APPROVED LPG tank to be installed in an incorrect position.
hoses.
LPG Tank Replacement
REMOVE 3. Run the engine until it stops. If truck is equipped
with a key switch, turn the key switch to the
OFF position. If truck is equipped with a Power
WARNING
ON/OFF button, press the Power ON/OFF but-
LPG can cause an explosion. Do not cause
ton to turn engine off.
sparks or permit flammable material near the
LPG system. LPG fuel systems can be discon-
4. Disconnect the quick-disconnect fitting on the
nected indoors only if the lift truck is at least
LPGtank. See Figure 1.
8 m (26 ft) from any open flame, motor vehicles,
electrical equipment, or ignition source.
5. Push in the bracket release pin, grab the bracket
handle, and swing the tank and bracket out to
Close the shutoff valve on the LPG tank before
the side of the lift truck. If your truck is equipped
any part of the engine fuel system is discon-
with a EZXchange bracket, drop the tank down
nected. Run the engine until the fuel in the sys-
to the side of the truck for ease of removal. See
tem is used and the engine stops.
Figure 2.
If the engine will not run, close the shutoff
6. Unlatch the tank strap and remove the LPG tank
valve on the LPG tank. Loosen the fitting on
from the bracket.
the supply hose from the LPG tank where it
enters the filter unit. Permit the pressure in
INSTALL
the fuel system to decrease slowly. Fuel leav-
ing the fitting removes heat. Use a cloth to NOTE: The LPG bracket must be in the swing-out
protect your hands from the cold fitting. position to install the LPG tank. If your lift truck
has the EZXchange bracket, position the bracket in
NOTE: The LPG tank bracket used on this line of
the drop-down position.
trucks to mount the LPG tank onto the counter-
weight comes in two styles. One style of bracket
WARNING
swings out to the side of the truck and the other
When closing the LPG tank strap, do not wrap
swings out to the side and drops down (EZXchange"!
your fingers around the strap handle. The
bracket). See Figure 1.
strap can close quickly and with enough force
1. LPG tanks can be removed and replaced indoors
to cause injury to the fingers and hand.
only if the lift truck is at least 8 m (26 ft) from
1. Place the LPG tank into the bracket. Secure the
any flame or ignition source. Move the lift truck
tank strap around the tank and close the strap.
to an the area where LPG tanks are changed.
2. Turn the shutoff valve clockwise until the valve
is completely closed.
1
LPG Tank Replacement 900 SRM 1125
A. SWING-OUT LPG BRACKET B. SWING-OUT AND DROP-DOWN LPG BRACKET
(EZXCHANGE)
1. LPG TANK 7. STOP PIN
2. TANK STRAP 8. BRACKET HANDLE
3. QUICK DISCONNECT FITTING 9. BRACKET PIVOT
4. HYDROSTATIC RELIEF VALVE 10. GAS SPRING (DROP-DOWN BRACKET ONLY)
5. MANIFOLD BLOCK 11. BRACKET RELEASE PIN (BUTTON)
6. ALIGNMENT PIN
Figure 1. LPG Tank and Bracket
2
900 SRM 1125 Fuel Filter
2. Pull the stop pin (see Figure 1) and swing the
LPG tank bracket into the resting position on the
counterweight. Be sure that the bracket locks
into position.
3. Connect the hose to the LPG fuel lock-off connec-
tion on the LPG regulator. See Figure 2.
4. Connect the quick-disconnect fitting on the LPG
tank. See Figure 1.
5. Turn the fuel valve counterclockwise to open the
fuel valve.
6. Inspect the fuel system for leaks when the fuel
valve is open. There are four methods used to
inspect the fuel system for leaks:
a. Sound - Listen for sound of LPG escaping
from a tank fitting or hose connection.
b. Smell - LPG has a very distinctive odor. If
you smell LPG, DO NOT start the engine.
c. Soapy Water - This method is used in con-
junction with Step b above. If the odor of LPG
is present, but escaping fuel cannot be heard,
1. QUICK-DISCONNECT CONNECTION
apply soapy water to the fittings and observe
2. HOSE ASSEMBLY
3. CAPSCREW for bubbles.
4. LPG TANK
5. HOSE ASSEMBLY TO LPG
d. Frost - If the amount of LPG escaping is suf-
REGULATOR/LOCK-OFF
ficient, frost may appear on the fittings.
6. LPG REGULATOR CONNECTION
7. LPG REGULATOR
Figure 2. LPG Tank Hose Connections
Fuel Filter
REMOVE wear protective eye protection. If liquid fuel
continues to flow from the connections when
loosened, check to make sure the manual valve
WARNING
is fully closed.
LPG can cause an explosion. Do not permit any
sparks or open flames in the work area.
3. Remove the fuel hoses and clamps connected to
the fuel filter in two places. See Figure 3.
1. Close fuel valve on tank. Run engine until it
stops.
4. Remove the capscrews holding the fuel filter to
the intake manifold. See Figure 3.
2. Disconnect negative battery cable.
5. Remove the three screws from the top of the fuel
filter, then remove the cover, O-ring, filter (ele-
WARNING
ment), and spring. See Figure 4.
A small amount of fuel may still be present in
the fuel line. Use gloves to prevent burns and
3
Fuel Filter 900 SRM 1125
CLEAN AND INSPECT
WARNING
Compressed air can move particles and cause
injury to the user or to other personnel. Make
sure compressed air path is away from all per-
sonnel. Wear eye protection.
CAUTION
Use caution that foreign material accumulated
in the fuel filter body does not enter the injec-
tor or slow-idle passages or damage may occur.
1. HOSE
2. CLAMP
1. Use commpressed air to clean out the fuel filter
3. FUEL FILTER
body. See Figure 5.
4. INTAKE MANIFOLD
5. CAPSCREW
2. Check the fuel filter body for cracks and other
damage.
Figure 3. Fuel Filter
Figure 5. Fuel Filter Body
1. SCREW 4. FILTER (ELEMENT)
2. COVER 5. SPRING
3. O-RING
Figure 4. Filter Removal
4
900 SRM 1125 Fuel Filter
INSTALL
CAUTION
Use caution that the spring is not installed at
an angle in the fuel filter body or damage may
occur.
Use caution not to install the fuel filter (ele-
ment) upside-down, or damage may occur.
1. Install a new spring and filter (element) inside
the fuel filter body. See Figure 6.
1. SCREW 3. O-RING
2. COVER
Figure 7. O-ring Installation
1. FILTER (ELEMENT) 2. SPRING
Figure 6. Spring and Filter (element)
Installation
CAUTION
Verify the O-ring is fully seated in the fuel filter
body groove, or damage may occur.
2. Install a new O-ring to the fuel filter body and
tighten the screws to 3.4 to 4.4 N" m (30 to
40 lbf in). See Figure 7.
3. Insert the fuel hoses until they are completely
A. WHITE PAINT
seated against the base, and then firmly install
the clamps so that the fuel does not leak. See
1. INJECTOR HOSE
Figure 8.
2. CLAMP
Figure 8. Hose Installation
5
Carburetor Repair 900 SRM 1125
Relief Valve Replacement
REMOVE AND INSTALL 1. Close shutoff valve on tank.
2. Slowly loosen hose fitting for relief valve. Let fuel
WARNING
drain from fitting before removing relief valve.
LPG can cause an explosion. Do not cause
sparks or permit flammable material near
3. The valve cannot be repaired. If the valve is dam-
LPG system. Close fuel valve on tank. Discon-
aged, install new valve. After installation, open
nect negative battery cable to prevent sparks.
shutoff valve slowly and inspect system for leaks.
Carburetor Repair
REMOVE 10. Disconnect both fuel inlet hoses (large hose to
carburetor and smaller hose to fuel injector).
WARNING
11. Disconnect regulator hose.
Before disconnecting any part of the LPG fuel
system, close shutoff valve on fuel tank. Run
12. Disconnect power valve hose.
engine until fuel lines are empty and engine
13. Disconnect throttle cable at carburetor.
stops. If engine will not run, close shutoff valve
on fuel tank and release fuel slowly in a non-
14. Remove two nuts retaining carburetor to the gov-
hazardous area.
ernor. Carefully slide the carburetor from the
threaded studs and remove carburetor from gov-
1. Turn shutoff valve clockwise until valve is com-
ernor.
pletely closed.
2. Run engine until it stops. Then turn key to OFF DISASSEMBLE
position.
NOTE: Note the position of the diaphragm prior to
3. Disconnect hose from air cleaner at bonnet. removal to aid in the installation. See Figure 9.
4. Disconnect positive crankcase ventilation (PCV) 1. Disassemble power valve actuator by removing
hose from air bonnet. three screws, cover, spring, and diaphragm from
carburetor. See Figure 9.
5. Disconnect hose from manifold absolute pressure
(MAP) sensor. 2. Remove nut, lockwasher, throttle cable link, and
lever from carburetor.
6. Disconnect MAP sensor electrical connection.
3. Remove capscrews retaining fuel injector to the
7. Disconnect fuel injector electrical connection.
carburetor.
8. Disconnect throttle position sensor electrical con-
4. Remove fuel injector and seal.
nection.
9. Remove the two nuts retaining the air bonnet.
Remove air bonnet and MAP sensor together as
an assembly.
6
900 SRM 1125 Carburetor Repair
Figure 9. Carburetor Parts
7
Carburetor Repair 900 SRM 1125
Legend for Figure 9
1. NUT 12. INTAKE MANIFOLD
2. MAP SENSOR 13. ELECTRONIC GOVERNOR
3. BONNET 14. THREADED STUD
4. GASKET 15. SCREW
5. NUT 16. WASHER
6. NUT 17. ACTUATOR COVER
7. THROTTLE CABLE LINK 18. SPRING
8. CAPSCREW 19. DIAPHRAGM
9. FUEL INJECTOR 20. CAPSCREW
10. CARBURETOR 21. WASHER
11. GASKET 22. THROTTLE POSITION SENSOR
5. Remove capscrews retaining the throttle position INSTALL
sensor to the carburetor.
1. Install new gasket on governor.
6. Remove throttle position sensor.
2. Carefully slide the carburetor over the threaded
studs onto the governor. Install the two retaining
CLEAN
nuts.
WARNING
3. Connect throttle cable at carburetor.
Cleaning solvents can be flammable and toxic
4. Connect power valve hose.
and can cause skin irritation. When using
cleaning solvents, always follow recommenda-
5. Connect regulator hose.
tions of manufacturer.
6. Connect both fuel inlet hoses (large hose to car-
CAUTION buretor and smaller hose to fuel injector).
Only use oxygen sensor safe carburetor clean-
7. Install air bonnet and MAP sensor together as an
ing solvent when cleaning the carburetor.
assembly. Install the two retaining nuts.
Make sure that all of carburetor parts are clean be-
8. Connect the throttle position sensor electrical
fore assembly. Wash all parts (except diaphragm) in
connection.
carburetor cleaning solvent. Make sure that air pas-
sages in metering valve are clean.
9. Connect the fuel injector electrical connection.
ASSEMBLE
10. Connect MAP sensor electrical connection.
1. Install throttle position sensor and secure with
11. Connect positive crankcase ventilation (PCV)
two capscrews previously removed.
hose to air bonnet.
2. Install seal, fuel injector, and two screws on car-
12. Connect hose from air cleaner to bonnet.
buretor.
13. Connect hose to MAP sensor.
3. Install lever, throttle cable link, lockwasher, and
14. Connect hose from air cleaner to bonnet.
nut on carburetor. Tighten nut to 9 to 12 N" m
(80 to 106 lbf in).
4. Install diaphragm (as noted during removal),
spring, cover, and three screws. Tighten screws
to 1.5 to 2.0 N" m (13 to 18 lbf in).
8
900 SRM 1125 Governor Repair
Fuel Injector Repair
REMOVE
CAUTION
Do not insert wire more than 2.0 mm (0.08 in.)
1. Turn shutoff valve clockwise until valve is com-
into fuel injector nozzle. Otherwise, internal
pletely closed.
parts of fuel injector may be damaged.
2. Run engine until it stops, then turn key to OFF
2. Use a 1.2 mm (0.05 in.) diameter piece of steel
position.
wire to clean out inside of nozzle. Insert and pull
3. Disconnect hose from fuel injector.
out wire approximately 10 times while adding
343to 490kPa(50to 71psi) of pressure through
4. Remove two mounting screws. Remove fuel in-
fuel supply port.
jector and seal from carburetor.
3. Use an ohmmeter to check fuel injector coil for
CLEAN AND INSPECT
continuity. The coil resistance should be 3.5 to
4.5 .
1. Use a clean cloth to remove any carbon deposits
around nozzle.
4. Apply 12 VDC to both connector terminals of fuel
injector. A clicking sound should be heard.
WARNING
INSTALL
Compressed air can move particles so that they
cause injury to the user or to other personnel.
1. Insert seal and fuel injector into carburetor.
Make sure that the path of the compressed air
is away from all personnel. Wear protective
2. Install two mounting screws. Tighten screws to
goggles or a face shield to prevent injury to the
6.4 to 7.9 N" m (57 to 70 lbf in).
eyes.
3. Connect hose to fuel injector.
Governor Repair
REMOVE INSTALL
1. Remove the carburetor. See Carburetor Repair, 1. Verify that the mounting surface of the electronic
Remove. governor and the intake manifold are clean and
free of debris.
2. Disconnect the wiring harness connector from
the electronic governor sensor connector. 2. Install a new gasket.
3. Remove the two capscrews retaining the elec- 3. Slide the electronic governor over the threaded
tronic governor to the intake manifold. See Fig- studs onto the intake manifold.
ure 10.
4. Install the two capscrews to retain the electronic
4. Slide the electronic governor over the threaded governor.
studs away from the intake manifold and remove
5. Install the carburetor. See Carburetor Repair,
electronic governor.
Install.
5. Remove the gasket and discard.
9
Regulator Repair 900 SRM 1125
Legend for Figure 10
1. CAPSCREW
2. ELECTRONIC GOVERNOR
3. GASKET
4. THREADED STUD
5. INTAKE MANIFOLD
Figure 10. Electronic Governor
Regulator Repair
REMOVE
WARNING
LPG can cause an explosion. Do not permit any
sparks or flames in work area.
1. Close shutoff valve on tank. Run engine until it
stops.
2. Disconnect electrical connectors from main sole-
noid valve and fuel injector solenoid valve respec-
tively. See Figure 11.
Legend for Figure 11
1. FUEL INJECTOR SOLENOID VALVE
2. FUEL OUTLET
3. MAIN SOLENOID VALVE
4. CHAMBER A
5. COOLANT PORTS
6. RESONATOR PORT
7. CHAMBER C
8. CHAMBER B
9. FUEL FILTER CHAMBER
Figure 11. Regulator
10
900 SRM 1125 Control System
3. Put drain pan under drain valve for radiator. 3. Connect liquid LPG hose to regulator.
Open drain valve so that coolant drains into pan.
4. Connect cooling system hoses to regulator.
4. Disconnect cooling system hoses from regulator.
5. Close drain valve and fill cooling system with
5. Disconnect liquid LPG hose from regulator. proper amount and mixture of coolant. See the
Periodic Maintenance manual for your lift
6. Disconnect both LPG vapor hoses from regulator.
truck.
7. Disconnect balance line from regulator. Remove
6. Connect fitting from LPG tank to regulator as-
capscrews and regulator from mount.
sembly. Connect electrical connectors from main
solenoid valve and fuel injector solenoid valve re-
INSTALL
spectively.
1. Connect balance line to regulator. Install regula-
7. Connect hose to carburetor. Open shutoff valve
tor and capscrews on mount.
on tank. Start engine.
2. Connect both LPG vapor hoses to regulator.
Control System
ENGINE CONTROL UNIT (ECU) 2. Connect the wiring harness to the ECU.
3. Connect the negative battery cable.
Remove
CAUTION
Never connect or disconnect the wiring har-
ness at the ECU when the key switch is ON.
Never connect jumper wires or test instru-
ments to the ECU when the key switch is
ON. The best procedure is to disconnect the
battery negative cable when removing or in-
stalling electrical components.
Do not touch the connector pins or the soldered
connections on the circuit board. The ECU can
be damaged with an electrostatic discharge.
1. Disconnect the battery negative cable.
2. Disconnect the wiring harness from the ECU lo-
cated on the frame on the right side of engine.
See Figure 12.
1. CAPSCREW
3. Remove the four capscrews retaining the ECU to
2. ECU
the mounting bracket and remove the ECU.
3. FRAME
4. WIRING HARNESS
Install
5. MOUNTING BRACKET
1. Position the ECU on the mounting bracket. In-
Figure 12. Engine Control Unit
stall the four capscrews to retain the ECU to the
mounting bracket.
11
Control System 900 SRM 1125
ENGINE COOLANT TEMPERATURE (ECT) 2. Connect the ECT sensor connector.
SENSOR
3. Refill the radiator with engine coolant after in-
stalling the ECT sensor.
Remove
CAMSHAFT POSITION (CMP) SENSOR
1. Drain the engine coolant from the radiator before
removing the ECT sensor. Refer to the section
Voltage Check
Cooling System 700 SRM 1123.
2. Disconnect the ECT sensor connector.
WARNING
Turning the ignition switch to the ON position
3. Remove the ECT sensor and packing from the
with the fuel injector connector still connected
intake manifold. See Figure 13.
will actuate the fuel injector. Disconnect the
fuel injector connector.
WARNING
Turning the ignition switch to the ON position
with the high-tension lead still connected will
generate sparks, which can cause electrical
shock. Disconnect the high-tension lead and
avoid it from grounding to the vehicle body.
1. Verify that the ignition is OFF.
2. Remove the distributor.
3. Connect the distributor 4-pin connector.
4. Disconnect the high-tension lead from the dis-
tributor side.
5. Turn the ignition ON.
6. Measure the voltage between terminal 3 (signal)
and terminal 1 (signal ground). See Figure 14.
1. PACKING (COPPER WASHER)
2. ECT SENSOR
7. Rotate the distributor drive by hand and verify
3. WIRING CONNECTOR
the output signal. If not as specified, inspect the
4. INTAKE MANIFOLD
related wiring harnesses for open or short. If
wiring harnesses are okay, replace the distribu-
Figure 13. ECT Sensor
tor.
Install Specification: 4 pulse (5.0 V)/rev.
1. Install the ECT sensor and the new packing and
tighten the ECT sensor to 19 to 21 N" m (14 to
15.5 lbf ft).
12
900 SRM 1125 Control System
1. DISTRIBUTOR
2. DISTRIBUTOR (CMP SENSOR) CONNECTOR (ON DISTRIBUTOR)
Figure 14. Camshaft Position (CMP) Sensor Voltage Check
INTAKE AIR TEMPERATURE (IAT)
SENSOR
Remove
1. Disconnect the wiring harness connector from
the sensor connector.
2. Remove the sensor and aluminum seal washer.
See Figure 15.
Install
1. Install the IAT sensor and new aluminum seal
washer. Tighten the IAT sensor to 7.85 to
11.77 N" m ( 69 to 104 lbf in).
2. Connect the wiring harness connector to the sen-
sor connector.
1. IAT SENSOR
2. ALUMINUM SEAL WASHER
3. INTAKE MANIFOLD
Figure 15. IAT Sensor
13
Control System 900 SRM 1125
MANIFOLD ABSOLUTE PRESSURE (MAP) 2. Connect the vacuum hose to the MAP sensor.
SENSOR
3. Connect the wiring connector to the MAP sensor.
Remove
OXYGEN SENSOR
1. Disconnect the electrical connection to the MAP
Remove
sensor.
1. Disconnect electrical connector from the oxygen
2. Disconnect the vacuum hose from the MAP sen-
sensor. See Figure 17.
sor.
2. Remove oxygen sensor from exhaust pipe.
3. Remove the two screws retaining the MAP sen-
sor to the air bonnet and remove MAP sensor.Fig-
Install
ure 16.
1. Coat the oxygen sensor sparingly with an anti-
seize compound, then install sensor. Tighten sen-
sor to 39 N" m(29 lbf ft).
2. Connect the electrical connector to the oxygen
sensor.
1. MAP SENSOR 3. AIR BONNET
2. SCREWS
1. OXYGEN SENSOR
Figure 16. MAP Sensor
2. ELECTRICAL CONNECTOR
3. EXHAUST PIPE
Install
Figure 17. Oxygen Sensor
1. Place the MAPsensor inpositiononthe air bon-
net. Install the two screws to retain the MAP
sensor to the air bonnet.
14
900 SRM 1125 Control System
THROTTLE POSITION (TP) SENSOR
Remove
1. Disconnect the electrical connector from the TP
sensor.
2. Remove the two capscrews retaining the TP sen-
sor to the carburetor and remove sensor. See Fig-
ure 18.
Install
1. Place the TP sensor in position on the carburetor.
Install the two capscrews to retain the sensor to
the carburetor.
2. Connect the electrical connector to the TP sensor.
1. TP SENSOR 2. CAPSCREW
Figure 18. TP Sensor
15
NOTES
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16
TECHNICAL PUBLICATIONS
900 SRM 1125 5/05 (12/04) Printed in U.S.A.