1998 ISUZU TROOPER Service Repair Manual

Page 2089 of 3573

ISUZU TROOPER 1998  Service Repair Manual 6E±196
4JX1±TC ENGINE DRIVEABILITY AND EMISSIONS
QOS System Doesnt Work
StepActionValue(s)Ye sNo
1Was OBD System check performed?
ÐGo to Step 2
Go to OBD
System
Check
2Check glawplug indicator li

Page 2090 of 3573

ISUZU TROOPER 1998  Service Repair Manual 6E±197 4JX1±TC ENGINE DRIVEABILITY AND EMISSIONS
Much Black Smoke in Exhaust Gas
StepActionValue(s)Ye sNo
1DEFINITION:
In road tests, much black smoke is mixed.
Was OBD System check performed?
ÐGo

Page 2091 of 3573

ISUZU TROOPER 1998  Service Repair Manual 6E±198
4JX1±TC ENGINE DRIVEABILITY AND EMISSIONS
Excess Engine Oil Consumption
StepActionValue(s)Ye sNo
1DEFINITION:
Oil consumption measured in road tests is higher than
expected.
Was OBD System c

Page 2092 of 3573

ISUZU TROOPER 1998  Service Repair 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 information

Page 2093 of 3573

ISUZU TROOPER 1998  Service Repair 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. Inj

Page 2094 of 3573

ISUZU TROOPER 1998  Service Repair 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 connecto

Page 2095 of 3573

ISUZU TROOPER 1998  Service Repair 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 el

Page 2096 of 3573

ISUZU TROOPER 1998  Service Repair 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.  Damage