2004 DAEWOO NUBIRA Service Repair Manual

Page 665 of 2643

DAEWOO NUBIRA 2004  Service Repair Manual ENGINE CONTROLS  1F – 419
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
91.  Turn the ignition OFF.
2.  Replace the ECM.
Is the repair complete?–Go to Step 10–
101.  Using the scan tool, clear t

Page 666 of 2643

DAEWOO NUBIRA 2004  Service Repair Manual 1F – 420IENGINE CONTROLS
DAEWOO V–121 BL4

Page 667 of 2643

DAEWOO NUBIRA 2004  Service Repair Manual ENGINE CONTROLS  1F – 421
DAEWOO V–121 BL4
DIAGNOSTIC TROUBLE CODE (DTC) P0300
MULTIPLE CYLINDER MISFIRE DETECTED
System Description
The Engine Control Module (ECM) monitors the crank-
shaft and c

Page 668 of 2643

DAEWOO NUBIRA 2004  Service Repair Manual 1F – 422IENGINE CONTROLS
DAEWOO V–121 BL4
8. Check fuel for water, alcohol, etc.
9. A basic engine problem that affects all cylinders is
the only possibility at this point. (Cam timing,
throttle b

Page 669 of 2643

DAEWOO NUBIRA 2004  Service Repair Manual ENGINE CONTROLS  1F – 423
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
111.  Turn the engine OFF.
2.  Disconnect the fuel injector harness connector.
3.  Install a spark tester on cylinder #1 spark

Page 670 of 2643

DAEWOO NUBIRA 2004  Service Repair Manual 1F – 424IENGINE CONTROLS
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
23Repair the connector or connections.
Is the repair complete?–Go to Step 27–
241.  Turn the ignition OFF.
2.  Replace the

Page 671 of 2643

DAEWOO NUBIRA 2004  Service Repair Manual ENGINE CONTROLS  1F – 425
DAEWOO V–121 BL4

Page 672 of 2643

DAEWOO NUBIRA 2004  Service Repair Manual 1F – 426IENGINE CONTROLS
DAEWOO V–121 BL4
DIAGNOSTIC TROUBLE CODE (DTC) P0301
CYLINDER 1 MISFURE
System Description
The Engine Control Module (ECM) monitors the crank-
shaft and camshaft positions