ENGINE CONTROLS 1F–25
DAEWOO M-150 BL2
ENGINE CRANKS BUT WILL NOT RUN
Caution: Use only electrically insulated pliers when
handling ignition wires with the engine running to
prevent an electrical shock.
Caution: Do not pinch or restrict nylon fuel lines.
Damage to the lines could cause a fuel leak, result-
ing in possible fire or personal injury.
Important: If a no start condition exists, ensure the fuel
cutoff switch has not been tripped prior to further diagno-
sis.
Engine Cranks But Will Not Run
Step Action Value(s) Yes No
1
Perform an Euro On-Board Diagnostic (EOBD)
System Check.
Is the check complete.
–
Go to Step 2
Go to “Euro
On-Board
Diagnostic
System Check”
2
Crank the engine.
Does the engine start and continue to run?
–
System Ok Go to Step 3
3
Perform a cylinder compression test.
Is the cylinder compression for all of the cylinders at
or above the value specified?
1250 kPa
(181 psi) Go to Step 7 Go to Step 4
4
Inspect the timing belt alignment.
Is the timing belt in alignment?
–
Go to Step 6 Go to Step 5
5
Align or replace the timing belt as needed.
Is the repair complete?
–
Go to Step 2
–
6
Repair internal engine damage as needed.
Is the repair complete?
–
Go to Step 2
–
7
Inspect the fuel pump fuse.
Is the problem found?
–
Go to Step 8 Go to Step 9
8
Replace the fuse.
Is the repair complete?
–
Go to Step 2
–
9
Check for the presence of spark from all of the
ignition wires while cranking the engine.
Is spark present from all of the ignition wires?
–
Go to Step 23 Go to Step 10
10
1. Measure the resistance of the ignition wires.
2. Replace any of the ignition wire(s) with a
resistance above the value specified.
3. Check for the presence of spark from all of the
ignition wire.
Is spark present from all of the ignition wires? 5 kΩ Go to Step 2 Go to Step 11
11
1. Turn the ignition OFF.
2. Disconnect the crankshaft position (CKP) sensor
connector.
3. Turn the ignition ON.
4. Measure the voltage between following terminals:
D Terminal 1 and 3 of the CKP sensor connector.
D Terminal 2 and 3 of the CKP sensor connector.
D Terminal 1 of the CKP sensor connector and
ground.
D Terminal 2 of the CKP sensor connector and
ground.
Are the voltage measure within the value specified? ≈ 0.4 V Go to Step 13 Go to Step 12
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