Dieseling, Run-On - Daewoo CIELO EURO III Manual

Step
1. Repair or replace any fuel system components as
needed.
7
2. Perform an emission test.
Did the vehicle pass the emission test?
1. Check the ignition system for proper operation.
2. Inspect the spark plugs for excessive wear,
insulation cracks, improper gap, or heavy deposits.
8
3. Check the ignition wires for cracking, hardness, or
improper connections.
Is the problem found?
1. Repair or replace any ignition system components
as needed.
9
2. Perform an emission test.
Did the vehicle pass the emission test?
1. Inspect for vacuum leaks.
2. Inspect the catalytic converter for contamination.
3. Inspect for carbon buildup on the throttle body
and the throttle plate and inside the engine.
Remove with a top engine cleaner.
10
4. Check the Exhaust Gas Recirculation (EGR)
valve for not opening.
5. Check for proper Positive Crankcase Ventilation
(PCV) operation.
Are all checks and needed repairs complete?
Definition: An engine continues to run after the ignition switch is turned OFF.
Step
Were the Important Preliminary Checks performed?
1
Does the engine run smoothly after the ignition
2
switch is turned OFF?
1. Check the ignition switch and the ignition switch
adjustment.
3
2. Replace the ignition switch if needed.
Is the repair complete?
1. Check the evaporative emission system.
2. Check for leaking fuel injectors.
3. Check the Idle Air Control (IAC) valve operation.
4
4. Inspect for vacuum leaks.
5. Check for the proper base idle setting.
Are all checks and repairs complete?
DAEWOO T-154 BL2,3
Excessive Exhaust Emissions or Odors (Cont'd)
Action

DIESELING, RUN-ON

Action
ENGINE CONTROLS 1F – 379
Value(s) Yes
–
System OK
–
Go to Step 9
–
System OK
–
System OK
Value(s) Yes
–
Go to Step 2
– Go to Step 3
–
System OK
–
System OK
No
–
Go to Step 10
–
–
No
Go to
"Important
Preliminary
Checks"
Go to Step 4
–
–