Infiniti I30 (A33). Manual — part 203
SYMPTOM
Reference
section
HARD/NO
ST
AR
T/REST
AR
T
(EXCP
.
HA)
ENGINE
ST
ALL
HESIT
A
TION/SURGING/FLA
T
SPOT
SP
ARK
KNOCK/DET
ONA
TION
LACK
OF
POWER/POOR
ACCELERA
TION
HIGH
IDLE/LOW
IDLE
ROUGH
IDLE/HUNTING
IDLING
VIBRA
TION
SLOW/NO
RETURN
T
O
IDLE
OVERHEA
TS/W
A
TER
TEMPERA
TURE
HIGH
EXCESSIVE
FUEL
CONSUMPTION
EXCESSIVE
OIL
CONSUMPTION
BA
TTER
Y
DEAD
(UNDER
CHARGE)
Warranty symptom code
AA AB AC AD AE AF AG
AH
AJ
AK AL AM HA
IVIS (Infiniti Vehicle Immobilizer System —
NATS)
1
1
EC-82 or EL
section
ABS/TCS control unit
2
2
2
2
2
1 - 6: The numbers refer to the order of inspection.
CONSULT-II Reference Value in Data Monitor
Mode
NHEC0042
Remarks:
I
Specification data are reference values.
I
Specification data are output/input values which are detected or supplied by the ECM at the connector.
* Specification data may not be directly related to their components signals/values/operations.
i.e. Adjust ignition timing with a timing light before monitoring IGN TIMING, because the monitor may show the specification data in
spite of the ignition timing not being adjusted to the specification data. This IGN TIMING monitors the data calculated by the ECM
according to the signals input from the camshaft position sensor and other ignition timing related sensors.
I
If the real-time diagnosis results are NG and the on board diagnostic system results are OK when diagnosing the mass air flow sensor,
first check to see if the fuel pump control circuit is normal.
MONITOR ITEM
CONDITION
SPECIFICATION
ENG SPEED
CKPS·RPM (POS)
I
Tachometer: Connect
I
Run engine and compare tachometer indication with the CONSULT-II
value.
Almost the same speed as
the CONSULT-II value.
POS COUNT
I
Engine: Running
179 - 181
MAS A/F SE-B1
I
Engine: After warming up
I
Air conditioner switch: “OFF”
I
Shift lever: “N”
I
No-load
Idle
1.2 - 1.8V
2,500 rpm
1.6 - 2.2V
COOLAN TEMP/S
I
Engine: After warming up
More than 70°C (158°F)
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Symptom Matrix Chart (Cont’d)
EC-127
MONITOR ITEM
CONDITION
SPECIFICATION
HO2S1 (B2)
HO2S1 (B1)
I
Engine: After warming up
Maintaining engine speed at 2,000
rpm
0 - 0.3V
+,
Approx. 0.6 -
1.0V
HO2S1 MNTR (B2)
HO2S1 MNTR (B1)
LEAN
+,
RICH
Changes more than 5 times
during 10 seconds.
HO2S2 (B1)
HO2S2 (B2)
I
Engine: After warming up
Maintaining engine speed at 2,000
rpm
0 - 0.3V
+,
Approx. 0.6 -
1.0V
HO2S2 MNTR (B1)
HO2S2 MNTR (B2)
LEAN
+,
RICH
VHCL SPEED SE
I
Turn drive wheels and compare speedometer indication with the CON-
SULT-II value
Almost the same speed as
the CONSULT-II value
BATTERY VOLT
I
Ignition switch: ON (Engine stopped)
11 - 14V
THRTL POS SEN
I
Engine: After warming up, idle
the engine
Throttle valve: fully closed
0.15 - 0.85V
I
Engine: After warming up
I
Ignition switch: ON
(Engine stopped)
Throttle valve: fully opened
3.5 - 4.7V
START SIGNAL
I
Ignition switch: ON
,
START
,
ON
OFF
,
ON
,
OFF
CLSD THL POS
CLSD THL/P SW
I
Engine: After warming up, idle
the engine
Throttle valve: Idle position
ON
Throttle valve: Slightly open
OFF
AIR COND SIG
I
Engine: After warming up, idle
the engine
Air conditioner switch: “OFF”
OFF
Air conditioner switch: “ON”
(Compressor operates.)
ON
P/N POSI SW
I
Ignition switch: ON
Shift lever: “P” or “N”
ON
Except above
OFF
PW/ST SIGNAL
I
Engine: After warming up, idle
the engine
Steering wheel in neutral position
(forward direction)
OFF
The steering wheel is turned
ON
AMB TEMP SW
I
Ignition switch: ON
I
Compare ambient air tempera-
ture with the following:
Below 19°C (66°F)
OFF
Above 25°C (77°F)
ON
IGNITION SW
I
Ignition switch: ON
,
OFF
,
ON
ON
,
OFF
,
ON
INJ PULSE-B2
INJ PULSE-B1
I
Engine: After warming up
I
Air conditioner switch: “OFF”
I
Shift lever: “N”
I
No-load
Idle
2.4 - 3.2 msec
2,000 rpm
1.9 - 2.8 msec
B/FUEL SCHDL
I
Engine: After warming up
I
Air conditioner switch: “OFF”
I
Shift lever: “N”
I
No-load
Idle
2.0 - 3.2 msec
2,000 rpm
1.4 - 2.6 msec
IGN TIMING
I
Engine: After warming up
I
Air conditioner switch: “OFF”
I
Shift lever: “N”
I
No-load
Idle
15° BTDC
2,000 rpm
More than 25° BTDC
IACV-AAC/V
I
Engine: After warming up
I
Air conditioner switch: “OFF”
I
Shift lever: “N”
I
No-load
Idle
2 - 10 step
2,000 rpm
—
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
CONSULT-II Reference Value in Data Monitor Mode (Cont’d)
EC-128
MONITOR ITEM
CONDITION
SPECIFICATION
PURG VOL C/V
I
Engine: After warming up
I
Air conditioner switch: “OFF”
I
Shift lever: “N”
I
No-load
Idle
0%
2,000 rpm
—
A/F ALPHA-B2
A/F ALPHA-B1
I
Engine: After warming up
Maintaining engine speed at 2,000
rpm
54 - 155%
EVAP SYS PRES
I
Ignition switch: ON
Approx. 3.4V
AIR COND RLY
I
Air conditioner switch: OFF
,
ON
OFF
,
ON
FUEL PUMP RLY
I
Ignition switch is turned to ON (Operates for 5 seconds)
I
Engine running and cranking
ON
Except as shown above
OFF
COOLING FAN
I
After warming up engine, idle
the engine.
I
Air conditioner switch: “OFF”
Engine coolant temperature is 94°C
(201°F) or less
OFF
Engine coolant temperature is
between 95°C (203°F) and 104°C
(219°F)
Low
Engine coolant temperature is 105°C
(221°F) or more
HIGH
VENT CONT/V
I
Ignition switch: ON
OFF
HO2S1 HTR (B1)
HO2S1 HTR (B2)
I
Engine speed: Below 3,600 rpm
ON
I
Engine speed: Above 3,600 rpm
OFF
HO2S2 HTR (B1)
HO2S2 HTR (B2)
I
Ignition switch: ON (Engine stopped)
I
Engine speed: Above 3,600 rpm
OFF
I
Engine speed: Below 3,600 rpm [After driving for 2 minutes at a speed
of 70 km/h (43 MPH) or more]
ON
VC/V BYPASS/V
Ignition switch: ON
OFF
CAL/LD VALUE
I
Engine: After warming up
I
Air conditioner switch: “OFF”
I
Shift lever: “N”
I
No-load
Idle
14.0 - 33.0%
2,500 rpm
12.0 - 25.0%
ABSOL TH·P/S
I
Engine: After warming up
Throttle valve: fully closed
0.00%
I
Engine: After warming up
I
Ignition switch: ON
(Engine stopped)
Throttle valve: fully opened
Approx. 80.0%
MASS AIRFLOW
I
Engine: After warming up
I
Air conditioner switch: “OFF”
I
Shift lever: “N”
I
No-load
Idle
2.0 - 6.0 g·m/s
2,500 rpm
7.0 - 20.0 g·m/s
ABSOL PRES/SE
I
Ignition switch: ON
Approx. 4.4V
SWRL CONT S/V
I
Engine speed: Idle
Engine coolant temperature is
between 15°C (59°F) to 50°C
(122°F).
ON
Engine coolant temperature is above
50°C (122°F).
OFF
SWL CON VC SW
I
Engine speed: Idle
I
Engine coolant temperature is between 15°C (59°F) to 50°C (122°F).
OFF
I
Engine speed: Idle
I
Engine coolant temperature is between 55°C (131°F).
ON
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
CONSULT-II Reference Value in Data Monitor Mode (Cont’d)
EC-129
MONITOR ITEM
CONDITION
SPECIFICATION
ENGINE MOUNT
I
Engine: Running
Idle
“IDLE”
2,000 rpm
“TRVL”
Major Sensor Reference Graph in Data Monitor
Mode
NHEC0043
The following are the major sensor reference graphs in “DATA MONITOR” mode.
THRTL POS SEN, ABSOL TH·P/S, CLSD THL/P SW
NHEC0043S01
Below is the data for “THRTL POS SEN”, “ABSOL TH·P/S” and “CLSD THL/P SW” when depressing the
accelerator pedal with the ignition switch “ON”.
The signal of “THRTL POS SEN” and “ABSOL TH·P/S” should rise gradually without any intermittent drop or
rise after “CLSD THL/P SW” is changed from “ON” to “OFF”.
SEF240Y
ENG SPEED, MAS A/F SE-B1, THRTL POS SEN, HO2S2 (B1), HO2S1 (B1), INJ PULSE-B1
NHEC0043S02
Below is the data for “ENG SPEED”, “MAS A/F SE-B1”, “THRTL POS SEN”, “HO2S2 (B1)”, “HO2S1 (B1)” and
“INJ PULSE-B1” when revving engine quickly up to 4,800 rpm under no load after warming up engine suffi-
ciently.
Each value is for reference, the exact value may vary.
SEF241Y
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
CONSULT-II Reference Value in Data Monitor Mode (Cont’d)
EC-130
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