Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual — part 1743
6C–4
ENGINE FUEL (Y22SE 2.2L)
Fuel Filter
Fuel Filter and Associated Parts
140R100007
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Removal
CAUTION: When repair to the fuel system has been
completed, start engine and check the fuel system
for loose connections or leakage. For the fuel
system diagnosis, see Section “Driveability and
Emission”.
1. Disconnect battery ground cable.
Legend
(1) Fuel Hose
(2) Fuel Filter
(3) Fuel Filter Holder
(4) Fuel Hose
ENGINE FUEL (Y22SE 2.2L)
6C–5
2. Remove fuel filler cap.
140R100023
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3. Disconnect fuel hoses(1), (4) from fuel filter on both
engine side and fuel tank side.
4. Fuel filter fixing bolt.
• Remove the fuel filter fixing bolt on fuel filter
holder(3).
5. Remove fuel filter(2).
Inspection
1. Replace the fuel filter if the fuel leaks from the fuel
filter body or if the fuel filter body itself is damaged.
2. Replace the filter if it is clogged with dirt or
sediment.
Installation
1. Install the fuel filter in the proper direction.
2. Install fuel filter holder fixing bolt.
3. Connect fuel hoses on engine side and fuel tank
side.
4. Install fuel filler cap
5. Connect the battery ground cable.
Inspection
1. After installation, start engine and check for fuel
leakage.
2. Check clogged drain port of the receive rubber by
the foreign material, repair or clean if found clog it.
In–Tank Fuel Filter
The fuel filter is located on the lower end of the fuel
pickup tube in the fuel tank. The fuel filter prevents dirt
and water from entering the fuel system not unless the
fuel filter is completely submerged in water. The fuel
filter is maintenance free, requiring no maintenance.
Excess water and sediment restricts fuel supply to the
engine resulting in engine stall. If this happens, the fuel
tank would need to be cleaned thoroughly.
Fuel Pump Flow Test
If reduction of fuel supply is suspected, perform the
following checks.
1. Make sure that there is fuel in the tank.
2. With the engine running, check the fuel feed pipe
and hose from the fuel tank to the injector for any
signs of leakage. Retighten pipe and hose
connection if found loose. Also, inspect for crushed
or bent pipes and hoses.
3. Insert the hose from the fuel feed pipe into a clean
container and check for fuel pump flow rate.
4. Connect the pump relay terminals with a jumper
wire(1) as shown and start the fuel pump to
measure delivery.
140R100012
CAUTION: Avoid creating sparks when connecting
jumper wires.
If the measured value is out of specifications,
conduct the pressure test.
Pressure test
For the pressure test to the fuel system, see Section 6E
“Fuel Control System”.
Legend
(1) Fuel Filler Cap
(2) Receive Rubber Drain
Delivery Time
Delivery
15 seconds
0.38 liters minimum
6C–6
ENGINE FUEL (Y22SE 2.2L)
Fuel Pump Relay
General Description
In order to control the Fuel Pump and Sender (FPS)
Assembly operation, the FPS relay is provided. When
the starter switch is turned to “ON” position, the FPS
relay operates the FPS assembly for 2 seconds.
When it is turned to “START” position, the Engine
Control Module receives the reference pulse from the
Ignition Control Module and it operates the relay, again
causing the FPS to feed fuel.
Fuel Tank
Fuel Tank and Associated Parts
140R200015
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Legend
(1) Hose; Evaporative Fuel
(2) Connector; Fuel Tank Pressure Sensor
(3) Connector; Fuel Feed Pump
(4) Fuel Tube/Quick Connector
(5) Bolt; Fuel Tank Asm. Fixing (QTY:5)
(6) Nut; Fuel Tank Asm. Fixing (QTY:1)
(7) Fuel Tank Assembly
(8) Hose; Fuel Feed
(9) Hose; Fuel Return
(10) Fuel Filler Hose
(11) Air Breather Hose
ENGINE FUEL (Y22SE 2.2L)
6C–7
Removal
CAUTION: When repair to the fuel system has been
completed, start engine and check the fuel system
for loose connection or leakage. For the fuel system
diagnosis, see Section “Driveability and Emission”.
1. Drain the fuel, refer to fuel pump flow test.
2. Disconnect battery ground cable.
3. Loosen fuel filler cap.
4. Support underneath of the fuel tank protector with a
lifter.
5. Disconnect evaporative fuel hose (1) at the canister.
6. Disconnect fuel feed hose (8) and fuel return hose
(9) near the fuel filter.
NOTE: Plug both ends of the fuel hoses to prevent fuel
leakage.
7. Disconnect air breather hose (11) and fuel filler hose
(10) at the fuel filler neck.
NOTE: Cover fuel hose to prevent any dust entering.
8. Remove the four fuel tank assembly fixing bolts (5).
9. Lower the tank and disconnect the electrical
connectors (2,3).
10. Remove the fuel tank assembly (7).
Installation
1. Raise the fuel tank assembly and install the
connectors (2,3) to the fuel pump and sending unit.
2. Install fuel tank assembly and torque the five fixing
bolts and a nut.
Torque: 68 N·m (50 lb ft)
3. Connect fuel filler hose (10) and air breather hose
(11), and clip them firmly.
4. Install the fuel feed hose (8) and fuel return hose (9)
near the fuel filter and clip to a snug fit.
5. Connect evaporative fuel hose (1).
6. Tighten fuel filler cap until at least three cliks are
heard.
7. Connect battery ground cable.
Fuel Gauge Unit
Removal and Installation
As for removal and installation of the Fuel Gauge Unit,
refer to “Fuel Pump” in this section as the fuel gauge
unit is combined with the fuel pump and sender
assembly.
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