Opel Frontera UE. Manual - part 850

6E1–283

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

2. Remove the fuel filler cap.

041RW005

3. Disconnect the fuel lines from the fuel filter on the

engine side.

4. Disconnect the fuel line from the fuel filter on the fuel

tank side.

041RW006

5. Remove the bolt on the fuel filter holder.

6. Remove the fuel filter.

041RW007

Inspection Procedure

1. Replace the fuel filter when the following occur:

D

Fuel leaks from the fuel filter body

D

The fuel filter body is damaged

D

The fuel filter is clogged with dust or sediment

2. If the drain hole is clogged at filler neck is clogged with

dust, clean the drain hole with air.

041RW008

6E1–284

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

Installation Procedure

1. Install the fuel filter in the correct direction.
2. Install the bolt on the fuel filter holder.
3. Connect the fuel line on the engine side.
4. Connect the fuel line on the fuel tank side.
5. Install the fuel filler cap.
6. Connect the negative battery cable.

041RW006

Fuel Injectors

Removal Procedure

NOTE: If the fuel injectors are leaking, the engine oil may
be contaminated with fuel.  Check the oil for signs of
contamination and change the oil and filter if necessary.

NOTE: Use care in removing the fuel injector in order to
prevent damage to the fuel injector electrical connector
pins or fuel injector nozzles. The fuel injector is an
electrical component and should not be immersed in any
type of cleaner as this may damage the fuel injector.

IMPORTANT:

Fuel injectors are serviced as complete

assembly only.

1. Disconnect the negative battery cable.

014RX035

2. Disconnect electrical connector from fuel injector.
3. Remove the fuel rail. Refer to Fuel Rail Removal

Procedure. 

014RX036

4. Remove the fuel injector retainer clip.
5. Remove fuel injector assembly from fuel rail.
6. Remove O–ring from the fuel injector.

6E1–285

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

7. Remove O–ring backup from fuel injector.

014RX037

Inspection Procedure

1. Inspect O–ring for crack, damage or leaks.
2. Replace worn or damaged O–ring.
3. Lubricate the new O–rings with engine oil before

installation.

Installation Procedure

1. Lubricate the new O–ring with engine oil.
2. Install the O–ring backup on the fuel injector.
3. Install new O–ring on the fuel injector.
4. Install all four injector on the fuel rail.
5. Use new injector retainer clip to retain the injector to

the fuel rail.

6. Coat the end of the fuel injector with engine oil.

014RX037

7. Install fuel rail assembly. Refer to Fuel Rail

Installation Procedure. 

8. Connect the negative battery cable.

014RX035

Fuel Pressure Regulator

Removal Procedure

CAUTION: To reduce the risk of fire and personal
injury, it is necessary to relieve the fuel system
pressure before servicing the fuel system
components.

CAUTION: After relieving the fuel system pressure,
a small amount of fuel may be released when
servicing fuel lines or connections. Reduce the
chance of personal injury by covering the fuel line
fitting with a shop towel before disconnecting the
fittings. The towel will absorb any fuel that may leak
out. When the disconnect is completed, place the
towel in an approved container.

NOTE: Compressed air must never used to test or clean
a fuel pressure regulator, as damage to the fuel pressure
regulator may occur.

014RX035

6E1–286

X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION

NOTE: To prevent damage to the fuel pressure regulator,
do not immerse the pressure regulator in solvent.

1. Depressurize the fuel system. Referto Fuel Pressure

Relief Procedure. 

2. Disconnect the negative battery cable.
3. Remove the fuel pump relay.
4. Disconnect the vacuum line form fuel pressure

regulator.

014RX038

5. Remove the fuel pressure regulator retaining screw.
6. Remove the fuel pressure regulator retaining bracket.
7. Remove the fuel pressure regulator from fuel rail.

014RX039

Installation Procedure

1. Insert the fuel pressure regulator into the fuel rail.

014RX039

2. Install the fuel pressure regulator retaining bracket

ant tighten with a screw.

3. Connect vacuum line onto the fuel pressure regulator.

014RX038

4. Install the fuel pump relay.
5. Connect the negative battery cable.