Nissan Note E12. Manual - part 248

ENGINE CONTROL SYSTEM SYMPTOMS

EC-331

< SYMPTOM DIAGNOSIS >

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C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Engine

Cylinder head

5

5

5

5

5

5

5

5

EM-79, "Inspection"

Cylinder head gasket

4

3

Cylinder block

6

6

6

6

6

6

6

6

4

EM-101, "Inspection"

Piston

Piston ring

Connecting rod

Bearing

Crankshaft

Valve 
mecha-
nism

Timing chain

5

5

5

5

5

5

5

5

EM-51, "Removal 
and Installation"

Camshaft

EM-68, "Inspection"

Intake valve timing control

EM-51, "Removal 
and Installation"

Exhaust valve timing con-
trol

EM-51, "Removal 
and Installation"

Intake valve

3

EM-79, "Inspection"

Exhaust valve

Ex-
haust

Exhaust manifold/Tube/
Muffler/Gasket

5

5

5

5

5

5

5

5

EM-31, "Removal 
and Installation"

 

EX-4, "Inspection"

Three way catalyst

Lubri-
cation

Oil pan/Oil strainer/Oil 
pump/Oil filter/Oil gallery/
Oil cooler

5

5

5

5

5

5

5

5

LU-7, "Inspection"

Oil level (Low)/Filthy oil

LU-7, "Inspection"

SYMPTOM

Reference page

HARD/NO S

TA

R

T/RES

TA

R

T (E

XCP

. HA)

E

N

GINE

 ST

ALL

HES

IT

A

TION/SURGING/FLA

T

 SPOT

S

P

ARK KNOC

K

/DET

O

NA

TI

ON

LACK OF 

POWER/POOR ACCELERA

TION

HIG

H

 IDL

E

/L

OW

 ID

LE

ROUGH IDLE/HUNTING

ID

LING VI

BRA

T

ION

S

LOW/NO RETU

RN 

T

O ID

LE

OVERHEA

T

S

/W

A

TER TEMPERA

T

URE HIG

H

E

XCESSIVE

 FUEL CON

S

UMP

T

ION

E

XCESSIVE

 OIL 

C

O

NSUMP

T

ION

B

A

TTER

Y 

DEAD (UNDER CHARGE)

Warranty symptom code

AA

AB

AC AD

AE

AF

AG AH

AJ

AK

AL

A

M

HA

EC-332

< SYMPTOM DIAGNOSIS >

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ENGINE CONTROL SYSTEM SYMPTOMS

1 - 6: The numbers refer to the order of inspection.

*: For details about type, refer to 

CHG-3, "Commercial Service Tool"

.

Cooling

Radiator/Hose/Radiator 
filler cap

5

5

5

5

5

5

5

4

5

CO-12, "RADIATOR : 
Inspection"
CO-12, "RADIATOR 
CAP : Inspection"

Thermostat

5

CO-21, "Removal 
and Installation"

Water pump

CO-19, "Removal 
and Installation"

Water gallery

CO-25, "Removal 
and Installation"

Cooling fan

5

CO-18, "Disassembly 
and Assembly"

Coolant level (Low)/Con-
taminated coolant

CO-8, "Inspection"

NATS (NISSAN Vehicle Immobilizer 
System) 

1

1

SEC-61, "ECM : 
Work Procedure"

SYMPTOM

Reference page

HARD/NO S

TA

R

T/RES

TA

R

T (E

XCP

. HA)

E

N

GINE

 ST

ALL

HES

IT

A

TION/SURGING/FLA

T

 SPOT

S

P

ARK KNOC

K

/DET

O

NA

TI

ON

LACK OF 

POWER/POOR ACCELERA

TION

HIG

H

 IDL

E

/L

OW

 ID

LE

ROUGH IDLE/HUNTING

ID

LING VI

BRA

T

ION

S

LOW/NO RETU

RN 

T

O ID

LE

OVERHEA

T

S

/W

A

TER TEMPERA

T

URE HIG

H

E

XCESSIVE

 FUEL CON

S

UMP

T

ION

E

XCESSIVE

 OIL 

C

O

NSUMP

T

ION

B

A

TTER

Y 

DEAD (UNDER CHARGE)

Warranty symptom code

AA

AB

AC AD

AE

AF

AG AH

AJ

AK

AL

A

M

HA

NORMAL OPERATING CONDITION

EC-333

< SYMPTOM DIAGNOSIS >

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C

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EC

N

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NORMAL OPERATING CONDITION

Description

INFOID:0000000009022687

FUEL CUT CONTROL (AT NO LOAD AND HIGH ENGINE SPEED)

If the engine speed is above 2,400 rpm under no load (for example, the shift lever position is neutral and

engine speed is over 2,400 rpm) fuel will be cut off after some time. The exact time when the fuel is cut off var-

ies based on engine speed.

Fuel cut will be operated until the engine speed reaches 2,000 rpm, then fuel cut will be cancelled.

NOTE:

This function is different from deceleration control listed under Multiport Fuel Injection (MFI) System, 

EC-30,

"MULTIPORT FUEL INJECTION SYSTEM : System Description"

.

EC-334

< PERIODIC MAINTENANCE >

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IDLE SPEED

PERIODIC MAINTENANCE

IDLE SPEED

Inspection

INFOID:0000000009022688

1.

CHECK IDLE SPEED

With CONSULT

Check idle speed in “DATA MONITOR” mode with CONSULT.

With GST

Check idle speed with Service $01 of GST.

Without CONSULT

Check idle speed by installing the pulse type tachometer clamp on the loop wire or on suitable high-tension

wire which installed between No.1 ignition coil and No.1 spark plug.

>> INSPECTION END