Nissan Frontier D22. Instruction — part 389
TROUBLE DIAGNOSIS
EC-659
[VG33E]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Symptom Matrix Chart
UBS00DF5
SYSTEM — BASIC ENGINE CONTROL SYSTEM
SYMPTOM
Reference
page
HARD/
NO ST
AR
T
/REST
AR
T (
EXCP
.
HA)
ENGI
NE ST
ALL
HESI
T
A
TION/
S
URGING/
FL
A
T
SPOT
SP
ARK KNOCK/DET
O
NA
T
ION
L
A
CK O
F
POW
E
R/
P
O
OR ACCEL
E
RA
TION
HI
GH I
D
L
E
/L
OW
I
D
L
E
RO
UGH ID
L
E
/HUNTING
ID
LING VI
BRA
T
ION
SL
OW
/NO RETURN
T
O
I
D
L
E
OVERHEA
T
S/
W
A
TER TEMPERA
T
URE HI
GH
EXCESSIVE FUEL
CONSUM
P
T
IO
N
EXCESSIVE OIL
CONSUM
P
T
ION
BA
TTER
Y
DEAD (
UNDER CHARGE)
Warranty symptom code
A
A
A
B
A
C
A
D
A
E
AF
A
G
AH
AJ
A
K
AL
A
M
H
A
Fuel
Fuel pump circuit
1
1
2
3
2
3
2
3
1
Injector circuit
2
Fuel pressure regulator system
4
4
4
4
4
4
4
3
3
4
Evaporative emission system
Air
Positive crankcase ventilation sys-
tem
1
Incorrect idle speed adjustment
3
3
1
1
1
1
1
IACV-AAC valve circuit
2
1
3
3
3
2
2
2
2
3
1
IACV-FICD solenoid valve circuit
2
3
3
Ignition
Incorrect ignition timing adjustment
3
3
1
1
1
1
1
1
Ignition circuit
1
1
2
2
2
2
2
2
EGR
EGRC-solenoid valve circuit
2
2
3
3
3
EGR system
2
1
2
3
3
3
2
2
3
3
Main power supply and ground circuit
1
2
3
3
3
3
2
1
3
1
Air conditioner circuit
2
3
2
EC-660
[VG33E]
TROUBLE DIAGNOSIS
1 - 6: The numbers refer to the order of inspection.
(continued on next page)
Camshaft position sensor circuit
1
1
2
2
2
2
2
2
Mass air flow sensor circuit
3
Heated oxygen sensor 1 circuit
,
Engine coolant temperature sensor circuit
1
2
3
3
3
2
3
Throttle position sensor circuit
1
2
2
2
2
Incorrect throttle position sensor adjustment
3
1
1
1
1
1
1
1
Vehicle speed sensor circuit
2
3
3
3
Knock sensor circuit
3
ECM
2
2
3
3
2
2
1
Start signal circuit
1
Park/neutral position (PNP) switch circuit
3
3
3
2
3
Power steering oil pressure switch circuit
2
SYMPTOM
Reference
page
HARD/NO ST
AR
T/REST
AR
T
(
EXCP
.
HA)
ENGINE ST
AL
L
HESIT
A
TI
ON/SURGI
N
G/FL
A
T SPOT
SP
ARK KNOCK/
DET
O
NA
TION
L
A
C
K
OF POW
E
R/POOR ACC
E
L
E
RA
TI
ON
HIGH IDL
E
/L
OW
IDL
E
ROUGH IDL
E
/HUNTING
IDLING
VIBRA
T
IO
N
SL
O
W
/NO RETURN
T
O
IDL
E
OVERHEA
T
S/W
A
TER TEMPERA
T
UR
E
HIGH
EXCESS
IVE FUEL CONSUM
P
T
ION
EXCESS
IVE OI
L
CONSUM
P
T
IO
N
BA
TTER
Y
DEAD (UNDER CHARGE)
Warranty symptom code
A
A
A
B
A
C
A
D
A
E
AF
A
G
AH
AJ
A
K
AL
A
M
H
A
TROUBLE DIAGNOSIS
EC-661
[VG33E]
C
D
E
F
G
H
I
J
K
L
M
A
EC
SYSTEM — ENGINE MECHANICAL & OTHER
SYMPTOM
Reference
section
HARD/NO ST
AR
T/REST
AR
T (
EXCP
. HA)
ENGINE ST
ALL
HESIT
A
TIO
N
/SURGING
/FL
A
T
SPOT
SP
ARK KNOCK/DET
O
NA
TION
L
A
CK
OF POW
E
R/
POOR ACCEL
E
RA
TIO
N
HIGH IDL
E
/L
OW
IDL
E
ROUGH I
D
L
E
/HUNTING
IDLING VIBRA
T
IO
N
SL
OW
/NO RETURN
T
O
IDL
E
OVERHEA
T
S/W
A
TER TEMPERA
T
URE
HIGH
EXCE
SSI
VE FUEL CONSUM
P
T
IO
N
EXCE
SSI
VE OIL
CONSUM
P
T
ION
BA
TT
ER
Y DEAD (
UNDER CHARGE)
Warranty symptom code
A
A
A
B
A
C
A
D
A
E
AF
A
G
AH
AJ
A
K
AL
A
M
H
A
Fuel
Fuel tank
5
5
Fuel piping
5
5
5
5
4
5
—
Vapor lock
Valve deposit
5
5
5
5
5
4
5
Poor fuel (Heavy weight gasoline,
Low octane)
Air
Air duct
5
5
5
5
4
5
Air cleaner
Air leakage from air duct
(Mass air flow sensor — throttle
body)
5
5
5
4
Throttle body, Throttle wire
Air leakage from intake manifold/
Collector/Gasket
5
—
Cranking
Battery
1
1
1
1
1
1
1
1
Generator circuit
Starter circuit
Park/neutral position (PNP) switch
Drive plate/Flywheel
6
EC-662
[VG33E]
TROUBLE DIAGNOSIS
1 - 6: The numbers refer to the order of inspection.
(continued on next page)
Engine
Cylinder head
5
5
5
5
5
5
5
5
Cylinder head gasket
2
2
Cylinder block
6
6
6
6
6
6
6
6
3
,
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Valve
mecha-
nism
Timing chain
6
6
6
6
6
6
6
6
Camshaft
Intake valve
2
Exhaust valve
Hydraulic lash adjuster
Exhaust
Exhaust manifold/Tube/Muffler/Gas-
ket
6
6
6
6
6
6
6
6
Three way catalyst
Lubrica-
tion
Oil pan/Oil strainer/Oil pump/Oil fil-
ter/Oil gallery
6
6
6
6
6
6
6
6
2
Oil level (Low/Filthy) oil
Cooling
Radiator/Hose/Radiator filler cap
6
6
6
6
6
6
6
2
6
,
Thermostat
5
5
Water pump
Water gallery
Cooling fan
5
5
Coolant level (low)/Contaminated
coolant
SYMPTOM
Reference
section
HARD/NO ST
AR
T/REST
AR
T
(
EXCP
.
HA)
ENGINE ST
AL
L
HESIT
A
TI
ON/SURGI
N
G/FL
A
T SPOT
SP
ARK KNOCK/
DET
O
NA
TION
L
A
C
K
OF POW
E
R/POOR ACC
E
L
E
RA
TI
ON
HIGH IDL
E
/L
OW
IDL
E
ROUGH IDL
E
/HUNTING
IDLING
VIBRA
T
IO
N
SL
O
W
/NO RETURN
T
O
IDL
E
OVERHEA
T
S/W
A
TER TEMPERA
T
UR
E
HIGH
EXCESS
IVE FUEL CONSUM
P
T
ION
EXCESS
IVE OI
L
CONSUM
P
T
IO
N
BA
TTER
Y
DEAD (UNDER CHARGE)
Warranty symptom code
A
A
A
B
A
C
A
D
A
E
AF
A
G
AH
AJ
A
K
AL
A
M
H
A
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