2003 NISSAN ALMERA N16 Blower engine

EM-76
[QG]
CYLINDER BLOCK
5. Install the signal plate to the crankshaft.
a. Position crankshaft and signal plate using a positioning dowel
pin, and tighten mounting bolts.
b. Remove dowel pin.
CAUTION:
Be sure to remove dowel pin.
NOTE:
●Dowel pins of crankshaft and signal plate are provided as a
set for each.
●If dowel pin is not available (when crankshaft and signal plate
are reused), use M6 bolt [length under head: 10 mm (0.39 in)
or longer] as its substitute.
6. Install the crankshaft to the cylinder block.
●While turning the crankshaft by hand, check that it turns smoothly.
7. Install main bearing cap.
●Main bearing cap is identified by identification paint No. made
on it before it is removed.
●Install it with arrow facing to front.
NOTE:
Main bearing cap cannot be replaced as a single part, because it
is machined together with cylinder block.
8. Tighten main bearing bolts in several steps in numerical order
shown in the figure.
●Apply engine oil onto thread and seat of mounting bolt.
●After tightening bolts to specified torque, make sure that
crankshaft rotates smoothly.
●Check crankshaft side clearance. Refer to EM-84, "CRANK-
SHAFT SIDE CLEARANCE" .
9. Install piston to connecting rod.
a. Using snap ring pliers, install snap ring to groove of piston rear side.
●Install with chamfered side facing piston pin side. Refer to EM-70, "Disassembly and Assembly" .
b. Install piston to connecting rod.
●Using hot-air blower, heat piston to 60 to 70°C (140 to 158°F) so that piston pin can be easily inserted
by hand. Insert piston pin into piston and connecting rod from front side of piston.
●Assemble so that front mark on piston head and oil hole in
connecting rod are positioned as shown in the figure.
c. Install snap ring to front side of piston.
●Refer to step “a” to install snap ring.
●After installation, make sure that connecting rod moves
smoothly.
PBIC0265E
SEM420C
SEM933F
PBIC0591E

TROUBLE DIAGNOSIS
EC-85
[QG (WITH EURO-OBD)]
C
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EC
62 Y/RIntake valve timing control
solenoid valve[Engine is running]
●Warm-up condition
●Idle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●Warm-up condition
●When revving engine up to 2,000 rpm
quickly.7 - 10V
65 GSensor power supply
(Power steering pressure
sensor)[Ignition switch “ON”]Approximately 5V
66 BSensor ground
(Throttle position sensor)[Engine is running]
●Warm-up condition
●Idle speedApproximately 0V
67 BSensor ground
(Mass air flow sensor)[Engine is running]
●Warm-up condition
●Idle speedApproximately 0V
68 R Throttle position sensor 2[Ignition switch “ON”]
●Engine stopped.
●Shift lever position is ″D″ (A/T models).
●Shift lever position is “1st” (M/T models).
●Accelerator pedal fully released.Less than 4.75V
[Ignition switch “ON”]
●Engine stopped.
●Shift lever position is ″D″ (A/T models).
●Shift lever position is “1st” (M/T models).
●Accelerator pedal fully depressed.More than 0.36V
69 L Refrigerant pressure sensor[Engine is running]
●Warm-up condition
●Both A/C switch and blower switch are
“ON”.
(Compressor operates.)1.0 - 4.0V
72 BR/WEngine coolant temperature
sensor[Engine is running]Approximately 0 - 4.8V
Output voltage varies with
engine coolant temperature.
73 BSensor ground
(Engine coolant temperature
sensor)[Engine is running]
●Warm-up condition
●Idle speedApproximately 0V
74 BSensor ground
(Heated oxygen sensor)[Engine is running]
●Warm-up condition
●Idle speedApproximately 0V TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
MBIB0052E
PBIB0532E

EC-326
[QG (WITH EURO-OBD)]
DTC P1217 ENGINE OVER TEMPERATURE
4. Perform “COOLING FAN” in “ACTIVE TEST” mode with CON-
SULT-II.
5. If the results are NG, go to EC-328, "
Diagnostic Procedure" .
WITH GST
1. Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go to EC-328,
"Diagnostic Procedure" .
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to EC-328,
"Diagnostic Procedure" .
3. Start engine.
Be careful not to overheat engine.
4. Turn air conditioner switch “ON”.
5. Turn blower fan switch “ON”.
6. Make sure that cooling fans operate.
If NG, go to EC-328, "
Diagnostic Procedure" .
MBIB0037E
SEF621W
SEC163BA

EC-328
[QG (WITH EURO-OBD)]
DTC P1217 ENGINE OVER TEMPERATURE
Diagnostic Procedure
EBS00KBH
1. INSPECTION START
Do you have CONSULT-II?
Ye s o r N o
Yes >> GO TO 2.
No >> GO TO 3.
2. CHECK COOLING FAN OPERATION
With CONSULT-II
1. Start engine and let it idle.
2. Select “COOLING FAN” in “ACTIVE TEST” mode with CON-
SULT-II and touch “ON” on the CONSULT-II screen.
3. Make sure that cooling fans-1 and -2 operate.
OK or NG
OK >> GO TO 4.
NG >> Check cooling fan control circuit. (Go to EC-331, "
PRO-
CEDURE A" .)
3. CHECK COOLING FAN OPERATION
Without CONSULT-II
1. Start engine and let it idle.
2. Turn air conditioner switch “ON”.
3. Turn blower fan switch “ON”.
4. Make sure that cooling fans-1 and -2 operate.
OK or NG
OK >> GO TO 4.
NG >> Check cooling fan control circuit. (Go to EC-331, "
PRO-
CEDURE A" .)
MBIB0037E
SEC163BA

REFRIGERANT PRESSURE SENSOR
EC-389
[QG (WITH EURO-OBD)]
C
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EC
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureEBS00KDB
1.CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION
1. Start engine and warm it up to normal operating temperature.
2. Turn A/C switch and blower switch “ON”.
3. Check voltage between ECM terminal 69 and ground with CON-
SULT-II or tester.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
46 RSensor power supply
(Refrigerant pressure sensor)[Ignition switch “ON”]Approximately 5V
57 BSensor ground
(Refrigerant pressure sensor)[Engine is running]
●Warm-up condition
●Idle speedApproximately 0V
69 L Refrigerant pressure sensor[Engine is running]
●Warm-up condition
●Both A/C switch and blower switch are “ON”.
(Compressor operates.)1.0 - 4.0V
Voltage: 1.0 - 4.0V
MBIB0035E

EC-390
[QG (WITH EURO-OBD)]
REFRIGERANT PRESSURE SENSOR
2. CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT
1. Turn A/C switch and blower switch “OFF”.
2. Stop engine.
3. Disconnect refrigerant pressure sensor harness connector.
4. Turn ignition switch “ON”.
5. Check voltage between refrigerant pressure sensor terminal 3
and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors E75, F36
●Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 57 and refrigerant pressure sensor terminal 1.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5. DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors E75, F36
●Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
MBIB0249E
Voltage: Approximately 5V
SEF479Y
Continuity should exist.

TROUBLE DIAGNOSIS
EC-463
[QG (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
62 Y/RIntake valve timing control
solenoid valve[Engine is running]
●Warm-up condition
●Idle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●Warm-up condition
●When revving engine up to 2,000 rpm
quickly.7 - 10V
65 GSensor power supply
(Power steering pressure
sensor)[Ignition switch “ON”]Approximately 5V
66 BSensor ground
(Throttle position sensor)[Engine is running]
●Warm-up condition
●Idle speedApproximately 0V
67 BSensor ground
(Mass air flow sensor)[Engine is running]
●Warm-up condition
●Idle speedApproximately 0V
68 R Throttle position sensor 2[Ignition switch “ON”]
●Engine stopped.
●Shift lever position is ″D″ (A/T models).
●Shift lever position is “1st” (M/T models).
●Accelerator pedal fully released.Less than 4.75V
[Ignition switch “ON”]
●Engine stopped.
●Shift lever position is ″D″ (A/T models).
●Shift lever position is “1st” (M/T models).
●Accelerator pedal fully depressed.More than 0.36V
69 L Refrigerant pressure sensor[Engine is running]
●Warm-up condition
●Both A/C switch and blower switch are
“ON”.
(Compressor operates.)1.0 - 4.0V
72 BR/WEngine coolant temperature
sensor[Engine is running]Approximately 0 - 4.8V
Output voltage varies with
engine coolant temperature.
73 BSensor ground
(Engine coolant temperature
sensor)[Engine is running]
●Warm-up condition
●Idle speedApproximately 0V
74 BSensor ground
(Heated oxygen sensor)[Engine is running]
●Warm-up condition
●Idle speedApproximately 0V TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
MBIB0052E
PBIB0532E

EC-598
[QG (WITHOUT EURO-OBD)]
DTC P1217 ENGINE OVER TEMPERATURE
4. Perform “COOLING FAN” in “ACTIVE TEST” mode with CON-
SULT-II.
5. If the results are NG, go to EC-600, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go to EC-600,
"Diagnostic Procedure" .
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to EC-600,
"Diagnostic Procedure" .
3. Start engine and let it idle.
Be careful not to overheat engine.
4. Turn air conditioner switch “ON”.
5. Turn blower fan switch “ON”.
6. Make sure that cooling fans operate.
If NG, go to EC-600, "
Diagnostic Procedure" .
MBIB0037E
SEF621W
SEC163BA