Isuzu 2000 Trooper Workshop Manual page 1381

6E–512
TROOPER 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Step
1 DEFINITION:
Engine continues to run after key is turned "OFF," but
runs very rough. If engine runs smooth, check ignition
switch and adjustment.
Was the "On-Board Diagnostic (OBD) System Check"
performed?
2 1. Perform a bulletin search.
2. If a bulletin that addresses the symptom is found,
correct the condition as instructed in the bulletin.
Was a bulletin found that addresses the symptom?
3 Was a visual/physical check performed?
4 1. Check for a short between B+ and any of the ignition
feed circuits.
2. If a problem is found, repair as necessary.
Was a problem found?
5 1. Review all diagnostic procedures within this table.
2. If all procedures have been completed and no
malfunctions have been found, review/inspect the
following:
D
Visual/physical inspection
D
Tech 2 data
D
Freeze Frame data/Failure Records butter
D
All electrical connections within a suspected
circuit and/or system
3. If a problem is found, repair as necessary.
Was a problem found?
Dieseling, Run-On Symptom
Action Value(s) Yes
— Go to Step 2
— Verify repair
— Go to Step 4
— Verify repair
— Verify repair
No
Go to OBD
System
Check
Go to Step 3
Go to
Visual/Physic
al Check
Go to Step 5
Contact
Technical
Assistance