Daewoo Nubira Owner's Manual page 163

Step
23 Connect a test light between terminal C of the EI sys-
tem ignition coil connector and battery positive.
Is the test light on?
24 Check for an open in the wiring between the battery
and the EI system ignition coil connector terminal D.
Is the problem found?
25 Check for an open in the wire from the EI system
ignition coil to ground.
Is the problem found?
26
1. Repair the wiring as needed.
2. Connect the EI system ignition coil connector.
3. Check for the presence of spark from all of the
ignition wires.
Is spark present from all of the ignition wires?
27
1. Turn the ignition OFF.
2. Disconnect the EI system ignition coil connec-
tor.
3. While cranking the engine, measure the volt-
age at the EI system ignition coil connector
terminal B.
Does the voltage fluctuate within the values speci-
fied?
28 While cranking the engine, measure the voltage at
the EI system ignition coil connector terminal A.
Does the voltage fluctuatewithin the values speci-
fied?
29 Check for an open in the wire from the EI system
ignition coil connector terminal B to the PCM/ECM
connector terminal C4.
Is the problem found?
30 Check for an open in the wire from the EI system
ignition coil connector terminal A to the PCM/ECM
connector terminal D5.
Is the problem found?
31
1. Repair the wiring as needed.
2. Connect the EI system ignition coil connector.
3. Check for the presence of spark from all of the
ignition wires.
Is spark present from all of the ignition wires?
32 Replace the EI system ignition coil.
Is the repair complete?
33 Replace the PCM/ECM.
Is the repair complete?
34
1. Turn the ignition OFF.
2. Connect a fuel pressure gauge.
3. Crank the engine.
Is any fuel pressure present?
DAEWOO V–121 BL4
Action
ENGINE CONTROLS 1F – 39
Value(s) Yes
Go toStep 27
Go toStep 26
Go toStep 26
Go toStep 2
0.2–2.0 v Go toStep 28
0.2–2.0 v Go toStep 32
Go toStep 31
Go toStep 31
Go toStep 2
Go toStep 2
Go toStep 2
Go toStep 37
No
Go toStep 25
Go to"Ignition 1
Relay Circuit
Check"
Go toStep 27
Go toStep 29
Go toStep 30
Go toStep 33
Go toStep 33
Go toStep 32
Go toStep 35