1998 OPEL FRONTERA fuse diagram

6E–325 ENGINE DRIVEABILITY AND EMISSIONS
Spark Plug Gap Check
Check the gap of all spark plugs before installation.
Use a round wire feeler gauge to ensure an accurate
check.
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
Tighten the spark plug to 18 Nꞏm (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.
The screwdriver blade will release the catch inside.
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ENGINE ELECTRICAL 6D – 1
ENGINE ELECTRICAL
CONTENTS
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6D–1
General Description . . . . . . . . . . . . . . . . 6D–1
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . 6D–1
On Vehicle Service . . . . . . . . . . . . . . . . . 6D–3
Main Data and Specification . . . . . . . . . . 6D–4
Starting System . . . . . . . . . . . . . . . . . . . . . 6D–5
General Description . . . . . . . . . . . . . . . . 6D–5
On Vehicle Service . . . . . . . . . . . . . . . . . 6D–7
Starter . . . . . . . . . . . . . . . . . . . . . . . . . . 6D–7
Unit Repair . . . . . . . . . . . . . . . . . . . . . . . 6D–8Charging System . . . . . . . . . . . . . . . . . . . . 6D–15
General Description . . . . . . . . . . . . . . . . 6D–15
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . 6D–16
Unit Repair . . . . . . . . . . . . . . . . . . . . . . . 6D–17
Main Data and Specification . . . . . . . . . . 6D–22
QOS4 Preheating System . . . . . . . . . . . . . . 6D–23
General Description . . . . . . . . . . . . . . . . 6D–23
System Diagram . . . . . . . . . . . . . . . . . . . 6D–23
Inspection of QOS4 System Operation . . 6D–24
BATTERY
GENERAL DESCRIPTION
DIAGNOSIS
There are six battery fluid caps at the top of the battery.
These are covered by a paper label.
The battery is completely sealed except for the six
small vent holes at the side. These vent holes permit
the escape of small amounts of gas generated by the
battery.
This type of battery has the following advantages over
conventional batteries:1. There is no need to add water during the entire
service life of the battery.
2. The battery protects itself against overcharging.
The battery will refuse to accept an excessive
charge.
(A conventional battery will accept an excessive
charge, resulting in gassing and loss of battery
fluid.)
3. The battery is much less vulnerable to self-
discharge than a conventional type battery.
1. VISUAL INSPECTION (Step 1)
Inspect the battery for obvious physical damage, such
as a cracked or broken case, which would permit
electrolyte loss.
Replace the battery if obvious physical damage is
discovered during inspection.
Check for any other physical damage and correct it as
necessary. If not, proceed to Step 2.
2. HYDROMETER CHECK (Step 2)
There is a built-in hydrometer (Charge test indicator) at
the top of the battery. It is designed to be used during
diagnostic procedures.
Before trying to read the hydrometer, carefully clean the
upper battery surface.
If your work area is poorly lit, additional light may be
necessary to read the hydrometer.
a. BLUE RING OR DOT VISIBLE – Go to Step 4.
b. BLUE RING OR DOT NOT VISIBLE – Go to
Step 3.3. FLUID LEVEL CHECK (Step 3)
The fluid level should be between the upper level line
and lower level line on side of the battery.
a. CORRECT FLUID LEVEL – Charge the battery.
b. BELOW LOWER LEVEL – Replace battery.
4. VOLTAGE CHECK (Step 4)
(1) Put voltmeter test leads to battery terminals.
a. VOLTAGE IS 12.4V OR ABOVE – Go to Step 5.
b. VOLTAGE IS UNDER 12.4V – Go to procedure
(2) below.
(2) Determine fast charge amperage from
specification. (See Main Data and Specifications in
this section.)
Fast charge battery for 30 minutes at amperage
rate no higher than specified value.
Take voltage and amperage readings after charge.
a. VOLTAGE IS ABOVE 16V AT BELOW 1/3 OF
AMPERAGE RATE – Replace battery.

6E–217 4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
Throttle Body (TB)
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the cover of the intercooler.
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3. Remove the bolts and the left side bracket to the
intercooler.
4 . R e m o v e t h e a i r d u c t w i t h b r a c k e t f r o m t h e i n t e r c o o l e r.
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5. Remove the throttle body assembly from the intake
manifold.
6. Disconnect the ITP sensor electrical connector.
Installation Procedure
NOTE: Do not use solvent of any type when you clean the
gasket surfaces on the intake manifold and the throttle
body assembly. The gasket surfaces and the throttle body
assembly may be damaged as a result.
If the throttle body gasket needs to be replaced,
remove any gasket material that may be stuck to the
mating surfaces of the manifold.
Do not leave any scratches in the aluminum casting.
1. Install the throttle body assembly to the intake
manifold and the air duct with bracket between
throttle body and intercooler.
Torque: 20 Nꞏm (14 Ib ft)
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2. Connect the ITP sensor electrical connector and
throttle motor control connector.
3. Install the bracket to the intercooler.
4. Install the cover of intercooler.
5. Connect the negative battery cable.
Air Conditioning (A/C) 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. Pull the relay straight up and out of the fuse and relay
box.
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.
An audible “click” will be heard.
3. Install the fuse and relay box cover.
Exhaust Gas Recirculation
(EGR) Vacuum Switch Valve
(VSV)
Removal Procedure
1. Disconnect the negative battery cable.