EM-90
< UNIT REMOVAL AND INSTALLATION >[HR16DE]
ENGINE ASSEMBLY
• Before starting engine, check oil/fluid levels incl
uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-11, "
Fluids and Lubricants".
• Use procedure below to check for fuel leaks.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leaks
at connection points.
• Start engine. With engine speed increased, che ck again for fuel leaks at connection points.
• Run engine to check for unusual noise and vibration. NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal and installation, slack in the guide
may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop
after hydraulic pressure rises.
• Warm up engine thoroughly to make sure there are no l eaks of fuel, exhaust gas, or any oils/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec- ified level, if necessary.
• Summary of the inspection items:
*Power steering fluid, brake fluid, etc. Item
Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeaks Level
Engine oil LevelLeaks Level
Transmission/
transaxle fluid CVT Models
LeaksLevel/Leaks Leaks
M/T Models Level/Leaks LeaksLevel/Leaks
Other oils and fluids* LevelLeaks Level
Fuel LeaksLeaksLeaks
Exhaust gas —Leaks —
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ENGINE UNITEM-91
< UNIT DISASSEMBLY AND ASSEMBLY > [HR16DE]
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UNIT DISASSEMBLY AND ASSEMBLY
ENGINE UNIT
SettingINFOID:0000000012431733
NOTE:
The following procedures explain how to disassemble the engine with the engine stand fastened to the bell
housing. Some steps may be different if using a different type of engine stand.
1. Install engine to engine stand:
a. On (M/T models), remove flywheel.
• Secure flywheel using suitable tool and remove bolts.
CAUTION:
• Do not disassemble flywheel.
• Do not place flywheel with signal plate facing down.
• When handling signal plate, take care not to damage or scratch it.
• Handle signal plate in a manner that prevents it from becoming magnetized.
b. On (CVT models), remove driveplate. • Secure driveplate using suitable tool and remove bolts.
CAUTION:
• Do not disassemble flywheel.
• Do not place flywheel or drive plat e with signal plate facing down.
• When handling signal plate, take care not to damage or scratch it.
• Handle signal plate in a manner that prevents it from becoming magnetized.
c. Lift the engine with a hoist to install it onto a widely used engine stand. CAUTION:
• Use the engine stand that has a load capacity approximately 150 kg (331 lb) or more large
enough for supporting the engine weight.
• If the load capacity of stand is not adequate, remove the following parts beforehand to reduce the poten- tial risk of overturning stand.
- Intake manifold. Refer to EM-28, "
Exploded View".
- Exhaust manifold. Refer to EM-31, "
Removal and Installation".
- Rocker cover. Refer to EM-48, "
Exploded View".
CAUTION:
Before removing the hanging chains, check the engine stand is stable and there is no risk of over-
turning.
NOTE:
The figure shows an example of widely used engine stand (A)
that can support the mating surface of transaxle with flywheel
removed.
2. Drain engine oil. Refer to LU-8, "
Draining".
CAUTION:
• Be sure to clean drain plug and in stall with new drain plug washer.
• Do not reuse drain plug washer. Tool number : KV11105210 (J-44716)
Tool number : KV11105210 (J-44716)
PBIC3227J
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EC-1
ENGINE
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SECTION EC
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CONTENTS
ENGINE CONTROL SYSTEM
HR16DE
PRECAUTION ....... ........................................
8
PRECAUTIONS .............................................. .....8
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
8
On Board Diagnostic (OBD) System of Engine
and CVT ....................................................................
8
General Precautions .................................................9
PREPARATION ...........................................12
PREPARATION .............................................. ....12
Special Service Tools .......................................... ....12
Commercial Service Tools ......................................12
SYSTEM DESCRIPTION .............................14
COMPONENT PARTS ................................... ....14
ENGINE CONTROL SYSTEM ............................... ....14
ENGINE CONTROL SYSTEM :
Component Parts Location ....................................
14
ENGINE CONTROL SYSTEM : Component De-
scription ............................................................... ....
17
Accelerator Pedal Position Sensor ..........................18
Air Fuel Ratio Sensor 1 ...........................................19
Air Fuel Ratio Sensor 1 Heater ...............................19
Camshaft Position Sensor .......................................19
Clutch Pedal Position Switch ..................................20
Cooling Fan .............................................................20
Crankshaft Position Sensor .....................................20
ECM .................................................................... ....20
Electric Throttle Control Actuator ............................21
Engine Coolant Temperature Sensor ......................21
Engine Oil Pressure Sensor ....................................21
Engine Oil Temperature Sensor ..............................21
EVAP Canister Purge Volume Control Solenoid
Valve ................................................................... ....
22
EVAP Canister Vent Control Valve .........................22
EVAP Control System Pressure Sensor ..................22
Exhaust Valve Timing Cont rol Solenoid Valve ........23
Fuel Injector ......................................................... ....23
Fuel Pump ...............................................................23
Heated Oxygen Sensor 2 ........................................24
Heated Oxygen Sensor 2 Heater ............................24
Ignition Coil With Power Transistor .........................24
Intake Air Temperature Sensor ...............................24
Intake Valve Timing Control Solenoid Valve ...........25
Knock Sensor ...................................................... ....25
Battery Current Sensor (With Battery Tempera-
ture Sensor) .............................................................
25
Malfunction Indicator Lamp (MIL) ............................26
Mass Air Flow Sensor ..............................................26
Oil Pressure Warning Lamp ....................................26
Refrigerant Pressure Sensor ............................... ....27
Stop Lamp Switch & ASCD Brake Switch ...............27
Throttle Control Motor .......................................... ....27
Throttle Control Motor Relay ...................................27
Throttle Position Sensor ..........................................27
ASCD Steering Switch .............................................27
STRUCTURE AND OPERATION .....................28
Positive Crankcase Ventilation ................................28
On Board Refueling Vapor Recovery (ORVR) ........29
SYSTEM ............................................................30
ENGINE CONTROL SYSTEM ........................ ...........30
ENGINE CONTROL SYSTEM : System Diagram ....30
ENGINE CONTROL SYSTEM : System Descrip-
tion ...........................................................................
31
MULTIPORT FUEL INJECTION SYSTEM ................31
MULTIPORT FUEL INJECTION SYSTEM :
System Diagram ................................................. ....
32
MULTIPORT FUEL INJECTION SYSTEM : Sys-
tem Description ........................................................
32
ELECTRIC IGNITION SYSTEM .................................35
ELECTRIC IGNITION SYSTEM :
System Diagram ................................................. ....
35
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DTC Logic ...........................................................
..
416
Diagnosis Procedure .............................................416
Component Inspection ..........................................418
P2135 TP SENSOR ..........................................419
DTC Logic ........................................................... ..419
Diagnosis Procedure .............................................419
Component Inspection ..........................................420
P2138 APP SENSOR .......................................422
DTC Logic .............................................................422
Diagnosis Procedure .............................................422
Component Inspection ..........................................424
P219A AIR FUEL RATIO .................................426
DTC Logic ........................................................... ..426
Diagnosis Procedure .............................................427
P219C, P219D, P219E, P219F AIR FUEL RA-
TIO ....................................................................
431
DTC Logic ........................................................... ..431
Diagnosis Procedure .............................................433
ASCD BRAKE SWITCH ...................................437
Component Function Check ................................ ..437
Diagnosis Procedure .............................................437
Component Inspection (ASCD Brake Switch) .......438
CLUTCH PEDAL POSITION SWITCH .............439
Component Function Check ................................ ..439
Diagnosis Procedure .............................................439
Component Inspection (Clutch Pedal Position
Switch) ..................................................................
440
COOLING FAN .................................................441
Component Function Check ................................ ..441
Diagnosis Procedure .............................................441
Component Inspection (Cooling Fan Motor) .........443
Component Inspection (Cooling Fan Relay) .........443
ELECTRICAL LOAD SIGNAL .........................444
Description .......................................................... ..444
Component Function Check ..................................444
Diagnosis Procedure .............................................444
FUEL INJECTOR .............................................446
Component Function Check ................................ ..446
Diagnosis Procedure .............................................446
Component Inspection ..........................................447
FUEL PUMP .....................................................448
Component Function Check ................................ ..448
Diagnosis Procedure .............................................448
Component Inspection ..........................................450
IGNITION SIGNAL ...........................................451
Component Function Check ................................ ..451
Diagnosis Procedure .............................................451
Component Inspection (Ignition Coil with Power
Transistor) ........................................................... ..
454
Component Inspection (Condenser) ......................455
MALFUNCTION INDICATOR LAMP ..............456
Component Function Check ..................................456
Diagnosis Procedure .............................................456
ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) ....................................................
457
Component Function Check ..................................457
Diagnosis Procedure .............................................457
Component Inspection (Refueling EVAP vapor cut
valve) ................................................................... ..
459
Component Inspection (Drain filter) .......................461
REFRIGERANT PRESSURE SENSOR ..........462
Component Function Check ..................................462
Diagnosis Procedure .............................................462
SYMPTOM DIAGNOSIS ............................464
ENGINE CONTROL SYSTEM SYMPTOMS ...464
Symptom Table ................................................... ..464
NORMAL OPERATING CONDITION .............470
Description .............................................................470
PERIODIC MAINTENANCE ......................471
IDLE SPEED .... ...............................................471
Inspection ............................................................ ..471
IGNITION TIMING ...........................................472
Inspection ..............................................................472
EVAPORATIVE EMISSION SYSTEM .............473
Inspection ..............................................................473
EVAP LEAK CHECK ......................................474
Inspection ..............................................................474
POSITIVE CRANKCASE VENTILATION .......476
Inspection ..............................................................476
REMOVAL AND INSTALLATION .............477
ECM .................................................................477
Exploded View ..................................................... ..477
Removal and Installation .......................................477
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .......................................... .
478
SERVICE DATA AND SPECIFICATIONS
(SDS) ...............................................................
478
Idle Speed ........................................................... ..478
Ignition Timing .......................................................478
Calculated Load Value ..........................................478
Mass Air Flow Sensor ............................................478
Revision: August 2015 2016 Versa Note
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EC-8
< PRECAUTION >[HR16DE]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint Syst
em (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000012431263
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery and wait at least three minutes before performing any service.
On Board Diagnosti c (OBD) System of Engine and CVTINFOID:0000000012431265
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
• Be sure to turn the ignition switch OFF and disconnect the negative battery cable before any repair
or inspection work. The open/short circuit of re lated switches, sensors, solenoid valves, etc. will
cause the MIL to light up.
• Be sure to connect and lock the connectors secure ly after work. A loose (unlocked) connector will
cause the MIL to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
• Certain systems and components, especially those related to OBD, may use a new style slide-lock- ing type harness connector. For descripti on and how to disconnect, refer to PG-9, "
Harness Connec-
tor".
• Be sure to route and secure the harnesses properly after work. The interference of the harness with
a bracket, etc. may cause the MIL to li ght up due to the short circuit.
• Be sure to connect rubber tubes properly afte r work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to the malfunction of the fuel injection system, etc.
• Be sure to erase the unnecessary malfunction info rmation (repairs completed) from the ECM and
TCM (Transmission control module) before returning the vehicle to the customer.
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EC-10
< PRECAUTION >[HR16DE]
PRECAUTIONS
•
After performing each TROUBLE DIAGNOSIS, perform DTC
CONFIRMATION PROCEDURE or Component Function
Check. The DTC should not be displayed in the DTC Confir-
mation Procedure if the repair is completed. The Component
Function Check should be a good result if the repair is com-
pleted.
• When measuring ECM signals with a circuit tester, never allow
the two tester probes to contact.
Accidental contact of probes will cause a short circuit and
damage the ECM power transistor.
• Do not operate fuel pump when there is no fuel in lines.
• Tighten fuel hose clamps to the specified torque.
• Do not depress accelerator pedal when starting.
• Immediately after starting, do not rev up engine unnecessar-
ily.
• Do not rev up engine just prior to shutdown.
SAT652J
SEF348N
SEF709Y
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COMPONENT PARTSEC-15
< SYSTEM DESCRIPTION > [HR16DE]
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1. Ignition coil No.4
(with power transistor) 2. Ignition coil No.3
(with power transistor) 3. Ignition coil No.2
(with power transistor)
4. Ignition coil No.1 (with power transistor) 5. PCV valve
6. Intake valve timing control solenoid
valve
7. Engine oil pressure sensor 8. Engine oil temperature sensor 9. Knock sensor
10. Engine coolant temperature sensor 11. Camshaft position sensor 12. Exhaust valve timing control position
sensor
13. Exhaust valve timing control sole- noid valve 14. Fuel injector No.1 (Front)
15. Fuel injector No.1 (Rear)
16. Fuel injector No.2 (Front) 17. Fuel injector No.2 (Rear)18. Fuel injector No.3 (Front)
19. Fuel injector No.3 (Rear) 20. Fuel injector No.4 (Front)21. Fuel injector No.4 (Rear)
22. Crankshaft position sensor
A. Engine front right side B. Left view of the engineC. Engine rear right side
JSBIA0592ZZ
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EC-18
< SYSTEM DESCRIPTION >[HR16DE]
COMPONENT PARTS
Accelerator Pedal Position Sensor
INFOID:0000000012431271
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelera-
tor position and sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometer which transform the accelerator pedal
position into output voltage, and emit the voltage signals to the ECM.
The ECM judges the current opening angle of the accelerator pedal
from these signals and controls the throttle control motor based on
these signals.
Idle position of the accelerator pedal is determined by the ECM
receiving the signal from the accelerator pedal position sensor. The
ECM uses this signal for the engine operation such as fuel cut.
Engine oil pressure sensor EC-21, "Engine Oil Pressure Sensor"
Engine oil temperature sensorEC-21, "Engine Oil Temperature Sensor"
EVAP canister purge volume control solenoid valveEC-22, "EVAP Canister Purge Volume Control Solenoid Valve"
EVAP canister vent control valveEC-22, "EVAP Canister Vent Control Valve"
EVAP control system pressure sensorEC-22, "EVAP Control System Pressure Sensor"
Exhaust valve timing control position sensor EC-19, "Camshaft Position Sensor"
Exhaust valve timing control solenoid valveEC-23, "Exhaust Valve Timing Control Solenoid Valve"
Fuel injectorEC-23, "Fuel Injector"
Fuel pumpEC-23, "Fuel Pump"
Heated oxygen sensor 2EC-24, "Heated Oxygen Sensor 2"
Heated oxygen sensor 2 heaterEC-24, "Heated Oxygen Sensor 2 Heater"
Ignition coil (with power transistor)EC-24, "Ignition Coil With Power Transistor"
Intake air temperature sensorEC-24, "Intake Air Temperature Sensor"
Camshaft position sensorEC-19, "Camshaft Position Sensor"
Intake valve timing control solenoid valveEC-25, "Intake Valve Timing Control Solenoid Valve"
Knock sensorEC-25, "Knock Sensor"
Mass air flow sensorEC-26, "Mass Air Flow Sensor"
PCV valveEC-28, "Positive Crankcase Ventilation"
Refrigerant pressure sensorEC-27, "Refrigerant Pressure Sensor"
Stop lamp switchEC-27, "Stop Lamp Switch & ASCD Brake Switch"
Throttle control motorEC-27, "Throttle Control Motor"
Throttle control motor relay EC-27, "Throttle Control Motor Relay"
Throttle position sensor EC-27, "Throttle Position Sensor"
ASCD steering switchEC-27, "ASCD Steering Switch"
ASCD brake switchEC-27, "Stop Lamp Switch & ASCD Brake Switch"
Clutch pedal position switchEC-20, "Clutch Pedal Position Switch"
Active grille shutterEXT-10, "ACTIVE GRILLE SHUTTER SYSTEM : Active grille shutter"
Component Reference
PBIB1741E
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