1998 OPEL FRONTERA Workshop Manual

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Page 2089 of 6000

OPEL FRONTERA 1998 Workshop Manual 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

Page 2090 of 6000

OPEL FRONTERA 1998 Workshop Manual 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 performe

Page 2091 of 6000

OPEL FRONTERA 1998 Workshop Manual 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 S

Page 2092 of 6000

OPEL FRONTERA 1998 Workshop Manual 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 i

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

Page 2093 of 6000

OPEL FRONTERA 1998 Workshop Manual 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. I

Page 2094 of 6000

OPEL FRONTERA 1998 Workshop Manual 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 co

Page 2095 of 6000

OPEL FRONTERA 1998 Workshop Manual 6E–202
4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
Crankshaft Position (CKP)
Sensor
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the under cover.
035RW091
3. Disconnect the

Page 2096 of 6000

OPEL FRONTERA 1998 Workshop Manual 6E–203 4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
Engine Coolant Temperature
(ECT) Sensor
Removal Procedure
NOTE: Care must be taken when handling the engine
coolant temperature (ECT) sensor

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