Opel Frontera UBS. Service manual — part 2207
6A–18
ENGINE MECHANICAL (6VE1 3.5L)
Malfunction Indicator Lamp
The instrument panel “CHECK ENGINE” Malfunction
Indicator Lamp (MIL) illuminates by self diagnostic
system when the system checks the starting of engine, or
senses malfunctions.
Condition
Possible cause
Correction
“CHECK ENGINE” MIL does not
illuminate at the starting of engine
Bulb defective
Replace
illuminate at the starting of engine
MIL circuit open
Correct or replace
Command signal circuit to operate
self diagnostic system shorted
Correct or replace
Powertrain Control Module (PCM)
cable loosely connected,
disconnected or defective
Correct or replace
PCM defective
Replace
“CHECK ENGINE” MIL illuminates,
and stays on
Deterioration of heated oxygen
sensor internal element
Replace
Heated oxygen sensor connector
terminal improper contact
Reconnect properly
Heated oxygen sensor lead wire
shorted
Correct
Heated oxygen sensor circuit open
Correct or replace
Deterioration of engine coolant
temperature sensor internal element
Replace
Engine coolant temperature sensor
connector terminal improper contact
Reconnect properly
Engine coolant temperature sensor
lead wire shorted
Correct
Engine coolant temperature sensor
circuit open
Correct or replace
Throttle position sensor open or
shorted circuits
Correct or replace
Deterioration of crankshaft position
sensor
Replace
Crankshaft position sensor circuit
open or shorted
Correct or replace
Vehicle speed sensor circuit open
Correct or replace
Manifold absolute pressure sensor
circuit open or shorted
Correct or replace
Intake air temperature sensor circuit
open or shorted
Correct or replace
Fuel injector circuit open or shorted
Correct or replace
PCM driver transistor defective
Replace PCM
Malfunctioning of PCM RAM
(Random Access Memory) or ROM
(Read Only Memory)
Replace PCM
6A–19
ENGINE MECHANICAL (6VE1 3.5L)
Cylinder Head Cover LH
Removal
1. Disconnect battery ground cable.
2. Remove engine cover from the dowels on the
common chamber.
F06RY001
3. Disconnect positive crankcase ventilation hose.
4. Remove ground cable fixing bolt on cylinder head
cover.
5. Ignition coil connector and ignition coil.
D
Disconnect the three connectors from the ignition
coils.
D
Remove harness bracket bolt on cylinder head
cover.
D
Remove fixing bolts on ignition coils.
060R200199
Legend
(1) Ignition Coil Connector
(2) Bolt
(3) Ignition Coil Assemblies
6. Disconnect fuel injector harness connector then
remove fuel injector harness bracket bolt.
7. Remove eight fixing bolts, then the cylinder head
cover.
010R200001
NOTE: Where do you refer the tech in case of bolt
removal difficulties.
6A–20
ENGINE MECHANICAL (6VE1 3.5L)
Installation
1. Install cylinder head cover.
D
Clean the sealing surface of cylinder head and
cylinder head cover to remove oil and sealing
materials completely.
D
Apply sealant (TB-1207B or equivalent) of bead
diameter 2-3 mm at eight place of arched area of
camshaft bearing cap on front and rear sides.
D
The cylinder head cover must be installed with in 5
minutes after sealant application to prevent
hardening of sealant.
D
Tighten bolts to the specified torque.
Torque : 9 N·m (0.9 kg·m/78 lb in)
010R200002
2. Install fuel injection harness bracket and tighten bolt
to the specified torque.
Torque : 9 N·m (0.9 kg·m/78 lb in)
3. Connect ignition coil connector and ignition coil, then
tighten bolt to the specified torque.
Torque : 4 N·m (0.4kg·m/35 lb in)
060R200199
Legend
(1) Ignition Coil Connector
(2) Bolt
(3) Ignition Coil Assembly
CAUTION: Ignition coil assembly #6 is different
from ignition coil assembly from #1 to #5. Ignition
coil assembly #6 is short type. So, note it when
installing ignition coil assembly of #6.
060RY00002
Legend
(1) Long Type Ignition Coil Assemblies (# 1
∼
# 5)
(2) Short Type Ignition Coil Assembly (# 6)
4. Connect ground cable and tighten bolts to the
specified torque.
Torque : 9 N·m (0.9 kg·m/78 lb in)
5. Install positive crankcase ventilation hose.
6. Install engine cover mating with the dowels.
6A–21
ENGINE MECHANICAL (6VE1 3.5L)
Cylinder Head Cover RH
Removal
1. Disconnect battery ground cable.
2. Remove engine cover from the dowels on the
common chamber.
F06RY001
3. Disconnect ventilation hose from cylinder head cover.
4. Disconnect three ignition coil connectors from ignition
coils and remove harness bracket bolts on cylinder
head cover then remove ignition coil fixing bolts on
ignition coils and remove ignition coils.
5. Disconnect fuel injector harness connector then
remove fuel injector harness bracket bolt.
6. Remove eight fixing bolts then the cylinder head
cover.
010RW002
Installation
1. Install cylinder head cover.
D
Clean the sealing surface of cylinder head and
cylinder head cover to remove oil and sealing
materials completely.
Apply sealant (TB-1207B or equivalent) bead
(diameter 2-3 mm) at eight places of arched areas
of camshaft bracket on front and rear sides.
014RW019
D
The cylinder head cover must be installed within 5
minutes after sealant application to prevent
premature hardening of sealant.
D
Tighten bolts to the specified torque.
Torque : 9 N·m (0.9 kg·m/78 lb in)
2. Tighten fuel injector harness bracket bolts to
specified torque then reconnect fuel injector harness
connector.
Torque : 9 N·m (0.9 kg·m/78 lb in)
3. Connect ignition coil connector and tighten ignition
coil fixing bolts to specified torque.
Torque : 4 N·m (0.4 kg·m/35 lb in)
4. Connect ventilation hose to cylinder head.
5. Install engine cover mating with the dowels.
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