OPEL FRONTERA 1998 Workshop Manual

6E–192
4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
Starting Difficulty In Case Fuel Doesn’t Come to Injector
StepActionVa l u e ( s )Ye sNo
1DEFINITION:
Engine is cranked, but not started for a long time. Steps
soon.
Was OBD System check performed?
—Go to Step 2
Go to OBD
System
Check
21. Perform a bulletin research.
2. If a bulletin that addresses the symptom is found,
correct the condition as instructed in the bulletin.
Was a bulletin found?
—Verify repairGo to Step 3
3Was a visual/physical check performed?
—Go to Step 4
Go to Visual/
Physical
Check
4Check fuel shortage. If short, replenish.
Was fuel short?
—
Ve r i f y
replenish
Go to Step 5
51. Check fuel pipeline for leak.
2. If a problem is found, repair as necessary.
Was a problem found?
—Verify repairGo to Step 6
61. Check fuel pipeline & filter for deformation &
clogging.
2. If a problem is found, repair as necessary.
Was a problem found?
—Verify repairGo to Step 7
71. Check fuel pump for damage.
2. If a problem is found, repair as necessary.
Was a problem found?
—Verify repairGo to Step 8
8Check the Injector test by Tech 2.
Does the working noise confirm?
—Go to Step 11Go to Step 9
91. Check the injector connector for damage.
2. Check the injector harness for damage.
3. If a problem is found, repair as necessary.
Was a problem found?
—Verify repairGo to Step 10
10Replace the injector. (Refer to the injector group sign
programming)
Is the action complete?—Verify repair—
111. Indicate RPCV Data List by Tech 2 to check
operation. Perform RPCV test.
2. If a problem is found, replace RP sensor or RPCV
as necessary.
Was a problem found?
—Verify repairGo to Step 12

6E–193 4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
Starting Difficulty In Case Fuel Doesn’t Come to Injector
StepNo Ye s Va l u e ( s ) Action
121. Review all diagnostic procedures within this table.
2. If all procedures have been completed and no
malfunctions have been found, review/inspect the
following:
Visual/physical inspection
Te c h 2 d a t a
Freeze Frame data/Failure Records butter
All electrical connections within a suspected
circuit and/or system
3. If a problem is found, repair as necessary.
Was a problem found?
—Verify repair
Contact
Te c h n i c a l
Assistance

6E–194
4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
Lubrication System Trouble
StepActionVa l u e ( s )Ye sNo
1DEFINITION:
In road tests oil pressure doesn’t rise, or oil is foul to
excess.
Was OBD System check performed?
—Go to Step 2
Go to OBD
System
Check
21. Perform a bulletin research.
2. If a bulletin that addresses the symptom is found,
correct the condition as instructed in the bulletin.
Was a bulletin found?
—Verify repairGo to Step 3
31. Check if a correct engine oil is used.
2. If a problem is found, change engine oil.
Was a problem found?
—Verify repairGo to Step 4
41. Check the oil pressure meter for damage.
2. Check the oil unit harness and connector for
damage.
3. If a problem is found, repair as necessary.
Was a problem found?
—Verify repairGo to Step 5
51. Check oil pipe connections for leakage.
2. If a problem is found, repair as necessary.
Was a problem found?
—Verify repairGo to Step 6
61. Check oil filter for clogging.
2. If a problem is found, repair as necessary.
Was a problem found?
—Verify repairGo to Step 7
71. Check valve clearance.
2. If a problem is found, adjust as necessary.
Was a problem found?
—Verify repairGo to Step 8
81. Check camshaft bearing for wear.
2. If a problem is found, repair as necessary.
Was a problem found?
—Verify repairGo to Step 9
91. Check crankshaft & connecting rod bearings for
wear.
2. If a problem is found, repair as necessary.
Was a problem found?
—Verify repairGo to Step 10
101. Check oil pump for damage.
2. If a problem is found, repair as necessary.
Was a problem found?
—Verify repairGo to Step 11

6E–195 4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
Lubrication System Trouble
StepNo Ye s Va l u e ( s ) Action
111. Check cylinder head & cam carrier gaskets for
damage.
2. If a problem is found, repair or replace as
necessary.
Was a problem found?
—Verify repairGo to Step 12
121. Review all diagnostic procedures within this table.
2. If all procedures have been completed and no
malfunctions have been found, review/inspect the
following:
Visual/physical inspection
Te c h 2 d a t a
Freeze Frame data/Failure Records butter
All electrical connections within a suspected
circuit and/or system
3. If a problem is found, repair as necessary.
Was a problem found?
—Verify repair
Contact
Te c h n i c a l
Assistance

6E–196
4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
QOS System Doesn’t Work
StepActionVa l u e ( s )Ye sNo
1Was OBD System check performed?
—Go to Step 2
Go to OBD
System
Check
2Check glawplug indicator light. If bulb is broken,
replace.
Was a problem found?
—Verify repairGo to Step 3
31. Connect a circuit tester between glawplug & engine
ground.
2. With ignition on and engine off, check if the glaw
indicator and circuit tester indicate power voltage
for 9 to 13 sec. If not indicated, repair terminal & wire
harness.
Was repair needed?
—Verify repairGo to Step 4
41. Connect a circuit tester between glawplug and
engine ground.
2. With engine on, check if voltage continues for 180
sec. If not, inspect and repair glaw relay.
Was repair needed?
—Verify repairGo to Step 5
51. Remove the glawplug, and if damaged, replace.
2. Check glawplug resistance.
Was resistance as specified?
0.8 – 1Go to Step 7Go to Step 6
6Replace glawplug.
Was measure completed?
—Verify repairGo to Step 7
71. Review all diagnostic procedures within this table.
2. If all procedures have been completed and no
malfunctions have been found, review/inspect the
following:
Visual/physical inspection
Te c h 2 d a t a
Freeze Frame data/Failure Records butter
All electrical connections within a suspected
circuit and/or system
3. If a problem is found, repair as necessary.
Was a problem found?
—Verify repair
Contact
Te c h n i c a l
Assistance

6E–197 4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
Much Black Smoke in Exhaust Gas
StepActionVa l u e ( s )Ye sNo
1DEFINITION:
In road tests, much black smoke is mixed.
Was OBD System check performed?
—Go to Step 2
Go to OBD
System
Check
21. Perform a bulletin research.
2. If a bulletin that addresses the symptom is found,
correct the condition as instructed in the bulletin.
Was a bulletin found?
—Verify repairGo to Step 3
31. Check if a correct fuel is used.
2. If a problem is found, change fuel.
Was a problem found?
—Verify repairGo to Step 4
41. Check air cleaner element for clogging.
2. If a problem is found, repair or replace as
necessary.
Was a problem found?
—Verify repairGo to Step 5
51. Connect Tech 2 to the vehicle.
2. Monitor data list to check injector function.
3. If a problem is found, repair as necessary.
Was a problem found?
—Verify repairGo to Step 6
61. Connect Tech 2 to the vehicle.
2. Monitor RPCV test to check rpcv function.
3. If a problem is found, repair as necessary.
Was a problem found?
—Verify repairGo to Step 7
71. Check valve clearance.
2. If a problem is found, adjust as necessary.
Was a problem found?
—Verify repairGo to Step 8
81. Review all diagnostic procedures in this table.
2. If all procedures have been completed and no
malfunctions have been found, review/inspect the
following:
Visual/physical check
Tech 2 data list
Freeze Frame data
All electrical connections in suspected circuits
& systems
3. If a problem is found, repair as necessary.
Was a problem found?
—Verify repair
Contact
Te c h n i c a l
Assistance

6E–198
4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
Excess Engine Oil Consumption
StepActionVa l u e ( s )Ye sNo
1DEFINITION:
Oil consumption measured in road tests is higher than
expected.
Was OBD System check performed?
—Go to Step 2
Go to OBD
System
Check
21. Perform a bulletin research.
2. If a bulletin that addresses the symptom is found,
correct the condition as instructed in the bulletin.
Was a bulletin found?
—Verify repairGo to Step 3
31. Check if a correct engine oil is used.
2. If a problem is found, change engine oil.
Was a problem found?
—Verify repairGo to Step 4
41. Check oil pipe connections for leakage.
2. If a problem is found, repair as necessary.
Was a problem found?
—Verify repairGo to Step 5
51. Check oil seals and gaskets for leakage.
2. If a problem is found, repair as necessary.
Was a problem found?
—Verify repairGo to Step 6
61. Connect Tech 2 to the vehicle.
2. Perform RPCV test to check its function.
3. If a problem is found, repair as necessary.
Was a problem found?
—Verify repairGo to Step 7
71. Check piston ring for damage & groove wear.
2. If a problem is found, repair as necessary.
Was a problem found?
—Verify repairGo to Step 8
81. Check valve stem, valve guide and oil controller for
wear.
2. If a problem is found, repair as necessary.
Was a problem found?
—Verify repairGo to Step 9
91. Check camshaft carrier & cylinder head gaskets for
blow-by.
2. If a problem is found, repair or replace as
necessary.
Was a problem found?
—Verify repairGo to Step 10
101. Review all the diagnostic procedures in this table.
2. If all procedures have been completed and no
malfunctions have been found, review/inspect the
following:
Visual/physical check
Tech 2 data list
Freeze Frame data
All electrical connections in suspected circuits
& systems
3. If a problem is found, repair as necessary.
Was a problem found?
—Verify repair
Contact
Te c h n i c a l
Assistance

6E–199 4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
Default Matrix Table
Service Procedure Default Strategy
A referral strategy has been established to assist the
technician with additional information when the cause ofthe failure cannot be determined. If no problem is found
after performing diagnostics, then refer to the default
matrix table for further diagnostic information.
Default Matrix Table
Strategy Based Diagnostic ChartsInitial DiagnosisDefault Section(s)
On-Board Diagnostic (OBD) System
CheckVehicle does not enter diagnostics.Chassis Electrical
On-Board Diagnostic (OBD) System
CheckVehicle enters diagnostics and
communicates with the Tech 2. MIL is
“ON” in diagnostics. Engine does not
start and run.HEUI System Check
On-Board Diagnostic (OBD) System
CheckEngine starts and runs, no ECM codes
set. Customer complains of vibration.—
On-Board Diagnostic (OBD) System
CheckEngine starts and runs, no ECM codes
set. Customer complains of harsh or
soft shift, poor performance, delayed or
no engagement into drive or reverse,
transmission fluid leak, transmission
noise or vibration, or improper TCC
operation.Automatic Transmission
ECM Power and Ground CheckOn-Board Diagnostic (OBD) System
Check.Chassis Electrical
ECM Power and Ground CheckOn-Board Diagnostic (OBD) System
Check. ECM power and ground circuits
OK. Data link voltage incorrect.Chassis Electrical
On-Board Diagnostic (OBD) System
CheckEngine starts and runs, no ECM codes
set. Customer complains of harsh or
soft shift, poor performance, delayed or
no engagement into drive or reverse,
transmission fluid leak, transmission
noise or vibration, or improper TCC
operation.Automatic Transmission
SymptomsInitial DiagnosisDefault Section(s)
Intermittents1. On-board diagnostic (OBD)
system check.
2. Careful visual/physical inspections.Chassis Electrical
Hard Starts1. OBD system check.
2. Sensors (ECT, MAP, EGR, AP) ;
output chart.
3. Fuel system electrical test, fuel
system diagnosis.
4. Injector system.Engine Mechanical, Injector
System Check, Exhaust System
Diagnosis
Surges and/or Chuggles1. OBD system check.
2. Fuel system diagnosis.
3. Injector system.Calibration ID “Broadcast”
/Service Bulletins, Ignition
System Check, Generator
Output, Exhaust System
Diagnosis
Lack of Power, Sluggish or Spongy1. OBD system check.
2. Fuel system diagnosis.
3. Injector system.Refer to Exhaust System in
Engine Exhaust, TCC
Operation, Calibration
ID/Service Bulletins

6E–200
4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
SymptomsInitial DiagnosisDefault Section(s)
Hesitation, Sag, Stumble1. OBD system check.
2. AP.
3. MAP output check.
4. Fuel system diagnosis.
5. Injector system.Generator Output Voltage (refer
to
Chassis Electrical),
Calibration ID/Service Bulletins,
Ignition System Check
Rough, Unstable, or Incorrect Idle,
Stalling1. OBD system check.
2. Fuel injector test.MAP Output Check, Throttle
Linkage, A/C Clutch Control
Circuit Diagnosis, Calibration
ID/Service Bulletins, Generator
Output Voltage (refer to
Chassis
Electrical
), Exhaust Diagnosis
Poor Fuel Economy1. OBD system check.
2. Careful visual/physical inspection.
3. Injector system.
4. Cooling system.TCC Operation, Exhaust
System (refer to
Engine
Exhaust
)
Engine Cranks But Will Not Run1. OBD system check.Fuel System Electrical
Diagnosis, Fuel System
Diagnosis, Fuel Injector Test.
Excessive Exhaust Emissions or
Odors1. OBD system check.
2. Emission test.
3. Cooling system.
4. Fuel system diagnosis.
5. Fuel injector test.
6. Injector system.
7. MAP output check.Exhaust Diagnosis, Calibration
ID/Service Bulletins
Dieseling, Run-On1. OBD system check.
2. Careful visual/physical inspection.
3. Fuel system diagnosis.—

6E–201 4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
On–Vehicle Service
Camshaft Position (CMP)
Sensor
Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the electrical connector to the CMP
sensor.
035RW071
3. Remove the CMP sensor retaining bolt from the
cylinder head cover.
035RW075
Inspection Procedure
1. Inspect the sensor O-ring for cracks or leaks.
2. Replace the O-ring if it is worn or damaged.
3. Lubricate the new O-ring with engine oil.
4. Install the lubricated O-ring.
Installation Procedure
1. Install the CMP sensor in the cylinder head cover.
2. Install the CMP sensor retaining bolt.
Tighten
Tighten the retaining bolt to 9 Nꞏm (78 lb in.).
035RW075
3. Connect the electrical connector to the CMP sensor.
035RW071
4. Connect the negative battery cable.