2003 NISSAN ALMERA N16 Electronic Repair Manual

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Page 553 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0227, P0228 APP SENSOR
EC-223
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EC
6.CHECK APP SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 106 and

Page 554 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual EC-224
[QG (WITH EURO-OBD)]
DTC P0227, P0228 APP SENSOR
4. If NG, replace accelerator pedal assembly and go to the next step.
5. Perform EC-31, "
Accelerator Pedal Released Position Learning"

Page 555 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0300 - P0304 MULTIPLE CYLINDER MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE
EC-225
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DTC P0300 - P0304 MULTIPLE CYLINDER MISFIRE, NO. 1 - 4 CYLIND

DTC P0300 - P0304 MULTIPLE CYLINDER MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE
EC-225
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DTC P0300 - P0304 MULTIPLE CYLINDER MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE
PFP:00000
On Board Diagnosis LogicEBS00K7U
When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the crank-
shaft position (CKP) sensor (POS) signal to vary, ECM can determine that a misfire is occurring.
The misfire detection logic consists of the following two conditions.
1. One Trip Detection Logic (Three Way Catalyst Damage)
On the first trip that a misfire condition occurs that can damage the three way catalyst (TWC) due to over-
heating, the MI will blink.
When a misfire condition occurs, the ECM monitors the CKP sensor (POS) signal every 200 engine revo-
lutions for a change.
When the misfire condition decreases to a level that will not damage the TWC, the MI will turn off.
If another misfire condition occurs that can damage the TWC on a second trip, the MI will blink.
When the misfire condition decreases to a level that will not damage the TWC, the MI will remain on.
If another misfire condition occurs that can damage the TWC, the MI will begin to blink again.
2. Two Trip Detection Logic (Exhaust quality deterioration)
For misfire conditions that will not damage the TWC (but will affect vehicle emissions), the MI will only light
when the misfire is detected on a second trip. During this condition, the ECM monitors the CKP sensor
signal every 1,000 engine revolutions.
A misfire malfunction can be detected on any one cylinder or on multiple cylinders.
DTC Confirmation ProcedureEBS00K7V
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch “OFF” and wait at
least 10 seconds before conducting the next test.
Sensor Input Signal to ECM ECM function
Crankshaft position sensor (POS) Engine speed On board diagnosis of misfire
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0300
0300Multiple cylinder misfire
detectedMultiple cylinder misfire.
●Improper spark plug
●Insufficient compression
●Incorrect fuel pressure
●The injector circuit is open or shorted
●Fuel injectors
●Intake air leak
●The ignition signal circuit is open or
shorted
●Lack of fuel
●Drive plate or flywheel
●Heated oxygen sensor 1
●Incorrect PCV hose connection P0301
0301No.1 cylinder misfire
detectedNo. 1 cylinder misfires.
P0302
0302No. 2 cylinder misfire
detectedNo. 2 cylinder misfires.
P0303
0303No. 3 cylinder misfire
detectedNo. 3 cylinder misfires.
P0304
0304No. 4 cylinder misfire
detectedNo. 4 cylinder misfires.

Page 556 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual EC-226
[QG (WITH EURO-OBD)]
DTC P0300 - P0304 MULTIPLE CYLINDER MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE
WITH CONSULT-II
1. Turn ignition switch “ON”, and select “DATA MONITOR” mode with CONSULT

Page 557 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0300 - P0304 MULTIPLE CYLINDER MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE
EC-227
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3.PERFORM POWER BALANCE TEST
With CONSULT-II
1. Perform “POWER BALANCE

Page 558 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual EC-228
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DTC P0300 - P0304 MULTIPLE CYLINDER MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE
6. CHECK SPARK PLUGS
Remove the spark plugs and check for fouling, etc.
OK or NG
OK >> GO TO 7.
NG

Page 559 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0300 - P0304 MULTIPLE CYLINDER MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE
EC-229
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9.CHECK IGNITION TIMING
Check the following items. Refer to EC-65, "

Page 560 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual EC-230
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DTC P0327, P0328 KS
DTC P0327, P0328 KS
PFP:22060
Component DescriptionEBS00K7X
The knock sensor is attached to the cylinder block. It senses engine
knocking using a pie

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