fuel pump NISSAN VERSA 2006 Workshop Service User Guide
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BASIC SERVICE PROCEDURE
EC-81
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Fuel Pressure CheckUBS00QOB
FUEL PRESSURE RELEASE
With CONSULT-II
1. Turn ignition switch ON.
2. Perform “FUEL PRESSURE RELEASE” in “WORK SUPPORT”
mode with CONSULT-II.
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel
pressure.
5. Turn ignition switch OFF.
Without CONSULT-II
1. Remove fuel pump fuse (1) located in IPDM E/R (2).
: Vehicle front
2. Start engine.
3. After engine stalls, crank it two or three times to release all fuel
pressure.
4. Turn ignition switch OFF.
5. Reinstall fuel pump fuse after servicing fuel system.
FUEL PRESSURE CHECK
CAUTION:
Before disconnecting fuel line, release fuel pressure from fuel line to eliminate danger.
NOTE:
Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel
pressure cannot be completely released because C11 models do not have fuel return system.
The fuel hose connection method used when taking fuel pressure check must not be used for
other purposes.
Be careful not to scratch or put debris around connection area when servicing, so that the quick
connector maintains sealability with O-rings inside.
Do not perform fuel pressure check with electrical systems operating (i.e. lights, rear defogger, A/
C, etc.) Fuel pressure gauge may indicate false readings due to varying engine load and changes
in manifold vacuum.
1. Release fuel pressure to zero. Refer to EC-81, "
FUEL PRESSURE RELEASE" .
2. Prepare fuel hose for fuel pressure check B and fuel tube
adapter (KV10118400) D, then connect fuel pressure gauge A.
: To quick connector
: To fuel tube (engine side)
C: Clamp
Use suitable fuel hose for fuel pressure check (genuine NIS-
SAN fuel hose without quick connector).
To avoid unnecessary force or tension to hose, use moder-
ately long fuel hose for fuel pressure check.
Do not use the fuel hose for checking fuel pressure with dam-
age or cracks on it.
Use Pressure Gauge to check fuel pressure.
3. Remove fuel hose. Refer to EM-18, "
INTAKE MANIFOLD" .
SEF 2 14 Y
PBIB2958E
PBIB2982E
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EC-82Revision: June 2006
BASIC SERVICE PROCEDURE
2007 Versa
Do not twist or kink fuel hose because it is plastic hose.
4. Connect fuel hose for fuel pressure check (1) to fuel tube
(engine side) with clamp (2) as shown in the figure.
No.2 spool (5)
Wipe off oil or dirt from hose insertion part using cloth moist-
ened with gasoline.
Apply proper amount of gasoline between top of the fuel tube
(3) and No.1 spool (4).
Insert fuel hose for fuel pressure check until it touches the
No.1 spool on fuel tube.
Use NISSAN genuine hose clamp (part number: 16439
N4710 or 16439 40U00).
When reconnecting fuel line, always use new clamps.
Use a torque driver to tighten clamps.
Install hose clamp to the position within 1 - 2 mm (0.04 - 0.08 in).
Make sure that clamp screw does not contact adjacent parts.
5. Connect fuel tube adapter to quick connector.
A: Fuel pressure gauge
B: Fuel hose for fuel pressure check
6. After connecting fuel hose for fuel pressure check, pull the hose
with a force of approximately 98 N (10 kg, 22 lb) to confirm fuel
tube does not come off.
7. Turn ignition switch ON and check for fuel leakage.
8. Start engine and check for fuel leakage.
9. Read the indication of fuel pressure gauge.
Do not perform fuel pressure check with system operating.
Fuel pressure gauge may indicate false readings.
During fuel pressure check, confirm for fuel leakage from fuel connection every 3 minutes.
10. If result is unsatisfactory, go to next step.
11. Check the following.
Fuel hoses and fuel tubes for clogging
Fuel filter for clogging
Fuel pump
Fuel pressure regulator for clogging
If OK, replace fuel pressure regulator.
If NG, repair or replace.
12. Check the following.
Fuel hoses and fuel tubes for clogging
Fuel filter for clogging
Fuel pump
Fuel pressure regulator for clogging
If OK, replace fuel pressure regulator.
If NG, repair or replace.
13. Before disconnecting Fuel Pressure Gauge and Fuel Pressure Adapter J-44321-6, release fuel pressure
to zero. Refer to EC-81, "
FUEL PRESSURE RELEASE" . Tightening torque: 1 - 1.5 N·m (0.1 - 0.15 kg-m, 9 - 13 in-lb)
At idling: Approximately 350 kPa (3.5 bar, 3.57 kg/cm
2 , 51 psi)
PBIB2983E
BBIA0695E
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EC-92Revision: June 2006
TROUBLE DIAGNOSIS
2007 Versa
Symptom Matrix ChartUBS00PKH
SYSTEM — BASIC ENGINE CONTROL SYSTEM
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel pump circuit 1 1 2 3 2 2 2 3 2EC-570
Fuel pressure regulator system 3 3 4 4 4 4 4 4 4 4EC-81
Fuel injector circuit 1 1 2 3 2 2 2 2EC-564
Evaporative emission system 3 3 4 4 4 4 4 4 4 4EC-31
Air Positive crankcase ventilation sys-
tem
334444444 41EC-44
Incorrect idle speed adjustment 1 1 1 1 1EC-70
Electric throttle control actuator 1 1 2 3 3 2 2 2 2 2 2EC-499,
EC-511
Ignition Incorrect ignition timing adjustment 3 3 1 1 1 1 1 1EC-70
Ignition circuit 1 1 2 2 2 2 2 2EC-576
Main power supply and ground circuit 2 2 3 3 3 3 3 2 3EC-144
Mass air flow sensor circuit
1
122
222 2EC-178,
EC-187
Engine coolant temperature sensor circuit
333EC-200,
EC-212
Air fuel ratio (A/F) sensor 1 circuitEC-220
,
EC-227
,
EC-233
,
EC-239
,
EC-540
Throttle position sensor circuit
22EC-206
,
EC-302
,
EC-460
,
EC-462
,
EC-526
Accelerator pedal position sensor circuit 3 2 1EC-430
,
EC-513
,
EC-519
,
EC-532
Knock sensor circuit 2 3EC-315
Crankshaft position sensor (POS) circuit 2 2EC-319
Camshaft position sensor (PHASE) circuit 3 2EC-327
Vehicle speed signal circuit 2 3 3 3EC-421
ECM 22333333333EC-427
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EC-94Revision: June 2006
TROUBLE DIAGNOSIS
2007 Versa
Air Air duct
55555 5EM-16
Air cleanerEM-16
Air leakage from air duct
(Mass air flow sensor — electric
throttle control actuator)
5555EM-16
Electric throttle control actuatorEM-18
Air leakage from intake manifold/
Collector/GasketEM-18
Cranking Battery
111111
11SC-4
Generator circuitSC-24
Starter circuit 3SC-10
Signal plate 6EM-77
Park/neutral position (PNP)
switch4MT-11, AT-
97 or
CVT-78
Engine Cylinder head
55555 55 5EM-62
Cylinder head gasket 4 3
Cylinder block
66666 66 64
EM-77
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Va lv e
mecha-
nismTiming chain
55555 55 5EM-37
CamshaftEM-47
Intake valve timing controlEM-37
Intake valve
3EM-62
Exhaust valve
Exhaust Exhaust manifold/Tube/Muffler/
Gasket
55555 55 5EM-21
, EX-
3Three way catalyst
Lubrica-
tionOil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery
55555 55 5EM-24
, LU-
8
Oil level (Low)/Filthy oilLU-5
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
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EC-98Revision: June 2006
TROUBLE DIAGNOSIS
2007 Versa
: Vehicle front
1. Intake valve timing control solenoid
valve2. Knock sensor 3. IPDM E/R
4. Fuel pump fuse (15A) 5. Fuel level sensor unit and fuel pump
harness connector (view with
inspection hole cover removed)6. Fuel level sensor unit and fuel pump
7. Fuel pressure regulator 8. Fuel level sensor 9. Fuel tank temperature sensor
10. Ignition coil
(with power transistor) and spark plug11. Fuel injector
BBIA0725E
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![NISSAN VERSA 2006 Workshop Service User Guide TROUBLE DIAGNOSIS
EC-107
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13 L Tachometer signal[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm](/img/5/57401/w960_57401-1275.png "NISSAN VERSA 2006 Workshop Service User Guide TROUBLE DIAGNOSIS
EC-107
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13 L Tachometer signal[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm")
TROUBLE DIAGNOSIS
EC-107
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13 L Tachometer signal[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle.3 - 5V
[Engine is running]
Warm-up condition
Engine speed: 2,000 rpm.3 - 5V
15 Y Throttle control motor relay[Ignition switch: OFF]BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]0 - 1.0V
17
18
21
22R
LG
G
SBIgnition signal No. 1
Ignition signal No. 2
Ignition signal No. 4
Ignition signal No. 3[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle.0 - 0.3V
[Engine is running]
Warm-up condition
Engine speed: 2,500 rpm.0.2 - 0.5V
23 GR Fuel pump relay[Ignition switch: ON]
For 1 second after turning ignition switch
ON
[Engine is running]0 - 1.0V
[Ignition switch: ON]
More than 1 second after turning ignition
switch ONBATTERY VOLTAGE
(11 - 14V) TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIA8164J
PBIA8165J
PBIA9265J
PBIA9266J
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TROUBLE DIAGNOSIS
EC-115
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X: Applicable
*1: This item includes 1st trip DTCs.
*2: This mode includes 1st trip freeze frame data or freeze frame data. The items appear on CONSULT-II screen in freeze frame data
mode only if a 1st trip DTC or DTC is detected. For details, refer to EC-52, "
FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME
DATA" .
*3: Always “COMPLT” is displayed.
*4: Models with A/C.
INSPECTION PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .
WORK SUPPORT MODE
Work Item
ENGINE CONTROL COMPONENT PARTS
OUTPUT
Fuel injector×× ×
Power transistor (Ignition timing)×× ×
Throttle control motor relay×××
Throttle control motor×
EVAP canister purge volume con-
trol solenoid valve×××××
Air conditioner relay××
Fuel pump relay××××
Cooling fan relay××××
Air fuel ratio (A/F) sensor 1 heater×××
×*
3
Heated oxygen sensor 2 heater×××
×*3
EVAP canister vent control valve×× ×××
Intake valve timing control solenoid
valve××××
Calculated load value××× ItemDIAGNOSTIC TEST MODE
WORK
SUP-
PORTSELF-DIAGNOSTIC
RESULTS
DATA
MONI-
TORDATA
MONI-
TOR
(SPEC)ACTIVE
TESTDTC & SRT
CONFIRMATION
DTC*
1 FREEZE
FRAME
DATA*
2
SRT
STATUSDTC
WORK
SUP-
PORT
WORK ITEM CONDITION USAGE
FUEL PRESSURE RELEASE
FUEL PUMP WILL STOP BY TOUCHING “START” DUR-
ING IDLING.
CRANK A FEW TIMES AFTER ENGINE STALLS.When releasing fuel pressure
from fuel line
IDLE AIR VOL LEARN
THE IDLE AIR VOLUME THAT KEEPS THE ENGINE
WITHIN THE SPECIFIED RANGE IS MEMORIZED IN
ECM.When learning the idle air volume
SELF-LEARNING CONT
THE COEFFICIENT OF SELF-LEARNING CONTROL
MIXTURE RATIO RETURNS TO THE ORIGINAL COEF-
FICIENT.When clearing the coefficient of
self-learning control value
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![NISSAN VERSA 2006 Workshop Service User Guide TROUBLE DIAGNOSIS
EC-119
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PURG VOL C/V [%]
Indicates the EVAP canister purge volume
control solenoid valve control value computed
by the ECM a](/img/5/57401/w960_57401-1287.png "NISSAN VERSA 2006 Workshop Service User Guide TROUBLE DIAGNOSIS
EC-119
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PURG VOL C/V [%]
Indicates the EVAP canister purge volume
control solenoid valve control value computed
by the ECM a")
TROUBLE DIAGNOSIS
EC-119
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PURG VOL C/V [%]
Indicates the EVAP canister purge volume
control solenoid valve control value computed
by the ECM according to the input signals.
The opening becomes larger as the value
increases.
INT/V TIM (B1) [°CA]
Indicates [°CA] of intake camshaft advanced
angle.
INT/V SOL (B1) [%]
The control value of the intake valve timing
control solenoid valve (determined by ECM
according to the input signal) is indicated.
The advance angle becomes larger as the
value increases
AIR COND RLY*
[ON/OFF]×
The air conditioner relay control condition
(determined by ECM according to the input
signals) is indicated.
FUEL PUMP RLY
[ON/OFF]×
Indicates the fuel pump relay control condition
determined by ECM according to the input sig-
nals.
VENT CONT/V [ON/
OFF]
The control condition of the EVAP canister
vent control valve (determined by ECM
according to the input signals) is indicated.
ON: Closed
OFF: Open
THRTL RELAY
[ON/OFF]×
Indicates the throttle control motor relay con-
trol condition determined by the ECM accord-
ing to the input signals.
COOLING FAN
[HI/LOW/OFF]×
Indicates the condition of the cooling fan
(determined by ECM according to the input
signals).
HI: High speed operation
LOW: Low speed operation
OFF: Stop
HO2S2 HTR (B1)
[ON/OFF]
Indicates [ON/OFF] condition of heated oxy-
gen sensor 2 heater determined by ECM
according to the input signals.
I/P PULLY SPD
[rpm]
Indicates the engine speed computed from the
turbine revolution sensor signal.
VEHICLE SPEED
[km/h] or [MPH]×
The vehicle speed computed from the vehicle
speed signal sent from TCM is displayed.
IDL A/V LEARN
[YET/CMPLT]
Display the condition of idle air volume learn-
ing
YET: Idle Air Volume Learning has not been
performed yet.
CMPLT: Idle Air Volume Learning has already
been performed successfully.
TRVL AFTER MIL
[km] or [mile]
Distance traveled while MIL is activated.
A/F S1 HTR (B1) [%]
Indicates A/F sensor 1 heater control value
computed by ECM according to the input sig-
nals.
The current flow to the heater becomes larger
as the value increases.
AC PRESS SEN [V]*×
The signal voltage from the refrigerant pres-
sure sensor is displayed. Monitored item [Unit]ECM
INPUT
SIG-
NALSMAIN
SIG-
NALSDescription Remarks
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TROUBLE DIAGNOSIS
EC-121
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NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
DATA MONITOR (SPEC) MODE
Monitored Item
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
ACTIVE TEST MODE
Test Item
Monitored item [Unit]ECM
input
signalsMain
signalsDescription Remarks
ENG SPEED [rpm]××
Indicates the engine speed computed
from the signal of the crankshaft position
sensor (POS) and camshaft position
sensor (PHASE).
MAS A/F SE-B1 [V]××
The signal voltage of the mass air flow
sensor specification is displayed.When engine is running specification
range is indicated.
B/FUEL SCHDL
[msec]×
“Base fuel schedule” indicates the fuel
injection pulse width programmed into
ECM, prior to any learned on board cor-
rection.
When engine is running specification
range is indicated.
A/F ALPHA-B1 [%]×
The mean value of the air-fuel ratio feed-
back correction factor per cycle is indi-
cated.When engine is running specification
range is indicated.
This data also includes the data for the
air-fuel ratio learning control.
TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
FUEL INJEC-
TION
Engine: Return to the original
trouble condition
Change the amount of fuel injec-
tion using CONSULT-II.If trouble symptom disappears, see
CHECK ITEM.
Harness and connectors
Fuel injector
Air fuel ratio (A/F) sensor 1
IGNITION TIM-
ING
Engine: Return to the original
trouble condition
Timing light: Set
Retard the ignition timing using
CONSULT-II.If trouble symptom disappears, see
CHECK ITEM.
Perform Idle Air Volume Learning.
POWER BAL-
ANCE
Engine: After warming up, idle
the engine.
A/C switch OFF
Shift lever: P or N (A/T, CVT),
Neutral (M/T)
Cut off each fuel injector signal
one at a time using CONSULT-II.Engine runs rough or dies.
Harness and connectors
Compression
Fuel injector
Power transistor
Spark plug
Ignition coil
COOLING FAN*
Ignition switch: ON
Turn the cooling fan “LOW”, “HI”
and “OFF” with CONSULT-II.Cooling fan moves and stops.
Harness and connectors
Cooling fan relay
Cooling fan motor
ENG COOLANT
TEMP
Engine: Return to the original
trouble condition
Change the engine coolant tem-
perature using CONSULT-II.If trouble symptom disappears, see
CHECK ITEM.
Harness and connectors
Engine coolant temperature sen-
sor
Fuel injector
FUEL PUMP
RELAY
Ignition switch: ON
(Engine stopped)
Turn the fuel pump relay ON and
OFF using CONSULT-II and lis-
ten to operating sound.Fuel pump relay makes the operat-
ing sound.Harness and connectors
Fuel pump relay
Page 1298 of 2896
TROUBLE DIAGNOSIS
EC-129
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Revision: June 20062007 VersaINJ PULSE-B1
Engine: After warming up
Air conditioner switch: OFF
Shift lever: P or N (A/T, CVT),
Neutral (M/T)
No loadIdle 2.0 - 3.0 msec
2,000 rpm 1.9 - 2.9 msec
IGN TIMING
Engine: After warming up
Air conditioner switch: OFF
Shift lever: P or N (A/T, CVT),
Neutral (M/T)
No loadIdle 8° - 18° BTDC
2,000 rpm 25° - 45° BTDC
CAL/LD VALUE
Engine: After warming up
Air conditioner switch: OFF
Shift lever: P or N (A/T, CVT),
Neutral (M/T)
No loadIdle 10% - 35%
2,500 rpm 10% - 35%
MASS AIRFLOW
Engine: After warming up
Air conditioner switch: OFF
Shift lever: P or N (A/T, CVT),
Neutral (M/T)
No loadIdle 1.0 - 4.0 g·m/s
2,500 rpm 2.0 - 10.0 g·m/s
PURG VOL C/V
Engine: After warming up
Air conditioner switch: OFF
Shift lever: P or N (A/T, CVT),
Neutral (M/T)
No loadIdle
(Accelerator pedal is not depressed
even slightly, after engine starting)0%
2,000 rpm 0 - 50%
INT/V TIM (B1)
Engine: After warming up
Air conditioner switch: OFF
Shift lever: P or N (A/T, CVT),
Neutral (M/T)
No loadIdle−5° - 5°CA
When revving engine up to 2,000 rpm
quicklyApprox. 0° - 40°CA
INT/V SOL (B1)
Engine: After warming up
Air conditioner switch: OFF
Shift lever: P or N (A/T, CVT),
Neutral (M/T)
No loadIdle 0% - 2%
When revving engine up to 2,000 rpm
quicklyApprox. 0% - 90%
AIR COND RLY*
2Engine: After warming up, idle
the engineAir conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates)ON
FUEL PUMP RLY
For 1 second after turning ignition switch ON
Engine running or crankingON
Except above conditions OFF
VENT CONT/V
Ignition switch: ON OFF
THRTL RELAY
Ignition switch: ON ON
COOLING FAN
Engine: After warming up, idle
the engine
Air conditioner switch: OFFEngine coolant temperature: 97°C
(207°F) or lessOFF
Engine coolant temperature: Between
98°C (208°F) and 99°C (210°F)LOW
Engine coolant temperature: 100°C
(212°F) or moreHIGH MONITOR ITEM CONDITION SPECIFICATION