Opel Frontera UBS. Manual - part 2188

6E–325

ENGINE DRIVEABILITY AND EMISSIONS

Spark Plug Gap Check

D

Check the gap of all spark plugs before installation.

D

Use a round wire feeler gauge to ensure an accurate
check.

D

Plugs installed with the wrong gap can cause poor
engine performance and excessive emissions.

Installation Procedure

NOTE: The plug must thread smoothly into the cylinder
head and be fully seated.  Use a thread chaser if
necessary to clean the threads in the cylinder head.
Cross-threading or failure to fully seat the spark plug can
cause plug overheating, exhaust blow-by gas, or thread
damage.  Do not overtighten the spark plugs.  Over
tightening can cause aluminum threads to strip.

1. Install the spark plug in the engine.  Use the

appropriate spark plug socket.

Tighten

D

Tighten the spark plug to 18 N·m (13 lb ft.).

2. Install the ignition coil and spark plug boot over the

spark plug.

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3. Secure the ignition coil to the rocker cover with two

screws.

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4. Connect the electrical connector at the ignition coil.
5. Connect the negative battery cable.

Catalytic Converter

Removal and Installation Procedure

Refer to 

Engine Exhaust in Engine.

Air Conditioning Relay

Removal Procedure

1. Remove the fuse and relay box cover from under the

hood.

2. Consult the diagram on the cover to determine which

is the correct relay.

3. Insert a small screwdriver into the catch slot on the

forward side of the fuel pump relay.

D

The screwdriver blade will release the catch inside.

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6E–326

ENGINE DRIVEABILITY AND EMISSIONS

4. Pull the relay straight up and out of the fuse and relay

box.

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Installation Procedure

1. Insert the relay into the correct place in the fuse and

relay box with the catch slot facing forward.

2. Press down until the catch engages.

D

An audible “click” will be heard.

3. Install the fuse and relay box cover.

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EVAP Canister Hoses

Service Information

To view the routing of the EVAP canister hoses, refer to
Vehicle Emission Control Information in Diagnosis.  Use
6148M or equivalent when you replace the EVAP canister
hoses.

EVAP Canister

Removal Procedure

1. Disconnect the negative battery cable.
2. Disconnect the three hoses from the EVAP canister.

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3. Remove the retaining two bolts on the mounting

bracket and slide the canister out of mounting
bracket.

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Inspection Procedure

1. Inspect the hoses for cracks and leaks.
2. Inspect the canister for a damaged case.

6E–327

ENGINE DRIVEABILITY AND EMISSIONS

Installation Procedure

1. Slide the canister into mounting bracket and install

the mounting bracket two bolts.

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2. Connect the three hoses to the EVAP canister.

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3. Disconnect the negative battery cable.

EVAP Canister Purge Solenoid

Removal Procedure

1. Disconnect the electrical connector from the EVAP

canister purge solenoid.

2. Disconnect the vacuum hoses from the EVAP

canister purge solenoid.

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3. Remove the EVAP canister purge solenoid retaining

bolt from the upper intake manifold.

4. Remove the EVAP canister purge solenoid.

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Installation Procedure

1. Install the EVAP canister purge solenoid on the upper

intake manifold.

2. Install the EVAP canister purge solenoid retaining

bolt.

6E–328

ENGINE DRIVEABILITY AND EMISSIONS

3. Connect the vacuum hoses to the EVAP canister

purge solenoid.

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4. Connect the electrical connector to the EVAP canister

purge solenoid.

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Fuel Tank Vent Valve

Removal and Installation Procedure

Refer to 

Fuel Pump

Linear Exhaust Gas

Recirculation (EGR) Valve

Removal Procedure

1. Disconnect the negative battery cable.

2. Disconnect the electrical connector at the EGR valve.

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3. Remove the bolt and the nut from the upper intake

manifold.

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4. Remove the EGR valve from the upper intake

manifold.

5. Remove the gasket from the upper intake manifold.

Installation Procedure

1. Install the gasket on the upper intake manifold.
2. Install the EGR valve on the upper intake manifold.
3. Secure the EGR valve and the gasket with the bolt

and the nut.