Nissan 350Z Workshop Maunual 2007 (13) PDF

EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
C
D
E
F
G
H
I
J
K
L
M
SECTION EC
A
EC
Revision: 2006 November 2007 350Z
ENGINE CONTROL SYSTEM
INDEX FOR DTC ........................................................ 8
DTC No. Index ......................................................... 8
Alphabetical Index .................................................. 13
PRECAUTIONS ........................................................ 18
Precautions for Supplemental Restraint System
(SRS) ?AIR BAG? and ?SEAT BELT PRE-TEN-
SIONER? ................................................................ 18
Precautions for Battery Service .............................. 18
Precautions for Procedures without Cowl Top Cover ... 18
On Board Diagnostic (OBD) System of Engine and
A/T .......................................................................... 18
Precaution .............................................................. 19
PREPARATION ......................................................... 22
Special Service Tools ............................................. 22
Commercial Service Tools ...................................... 23
ENGINE CONTROL SYSTEM .................................. 24
System Diagram ..................................................... 24
Multiport Fuel Injection (MFI) System .................... 25
Electronic Ignition (EI) System ............................... 27
Fuel Cut Control (at No Load and High Engine
Speed) .................................................................... 28
AIR CONDITIONING CUT CONTROL ..................... 29
Input/Output Signal Chart ....................................... 29
System Description ................................................ 29
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ... 30
System Description ................................................ 30
Component Description .......................................... 31
CAN COMMUNICATION .......................................... 32
System Description ................................................ 32
EVAPORATIVE EMISSION SYSTEM ....................... 33
Description ............................................................. 33
Component Inspection ........................................... 36
Removal and Installation ........................................ 37
How to Detect Fuel Vapor Leakage ....................... 37
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ...................................................................... 39
System Description ................................................ 39
Diagnostic Procedure ............................................. 40
Component Inspection ........................................... 42
POSITIVE CRANKCASE VENTILATION ................. 44
Description ..............................................................44
Component Inspection ............................................45
NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-
NATS) ........................................................................46
Description ..............................................................46
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............47
Introduction ............................................................. 47
Two Trip Detection Logic ........................................ 47
Emission-related Diagnostic Information ................48
Malfunction Indicator Lamp (MIL) ...........................62
OBD System Operation Chart ................................65
BASIC SERVICE PROCEDURE ...............................71
Basic Inspection .....................................................71
Idle Speed and Ignition Timing Check ....................76
Procedure After Replacing ECM ............................76
VIN Registration .....................................................76
Exhaust Valve Timing Control Learning ..................76
Accelerator Pedal Released Position Learning ...... 77
Throttle Valve Closed Position Learning ................. 77
Idle Air Volume Learning ........................................77
Fuel Pressure Check ..............................................79
TROUBLE DIAGNOSIS ............................................ 81
Trouble Diagnosis Introduction ...............................81
DTC Inspection Priority Chart ................................. 87
Fail-safe Chart ........................................................89
Symptom Matrix Chart ............................................90
Engine Control Component Parts Location ............94
Vacuum Hose Drawing .........................................100
Circuit Diagram .....................................................101
ECM Harness Connector Terminal Layout ...........103
ECM Terminals and Reference Value ...................103
CONSULT-III Function (ENGINE) .........................116
Generic Scan Tool (GST) Function .......................125
CONSULT-III Reference Value in Data Monitor ....127
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .132
Description ............................................................132
Testing Condition ..................................................132
Inspection Procedure ............................................132
Diagnostic Procedure ...........................................133
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-

Nissan 350Z Workshop Maunual 2007 (13) Summary of Content

EC-1ENGINE CONTROL SYSTEMB ENGINECONTENTSCDEFGHIJKLMSECTION ECAECRevision: 2006 November 2007 350ZENGINE CONTROL SYSTEMINDEX FOR DTC ........................................................ 8DTC No. Index ......................................................... 8Alphabetical Index .................................................. 13PRECAUTIONS ........................................................ 18Precautions for Supplemental Restraint System (SRS) AIR BAG and SEAT BELT PRE-TEN-SIONER ................................................................ 18Precautions for Battery Service .............................. 18Precautions for Procedures without Cowl Top Cover ... 18On Board Diagnostic (OBD) System of Engine and A/T .......................................................................... 18Precaution .............................................................. 19PREPARATION ......................................................... 22Special Service Tools ............................................. 22Commercial Service Tools ...................................... 23ENGINE CONTROL SYSTEM .................................. 24System Diagram ..................................................... 24Multiport Fuel Injection (MFI) System .................... 25Electronic Ignition (EI) System ............................... 27Fuel Cut Control (at No Load and High Engine Speed) .................................................................... 28AIR CONDITIONING CUT CONTROL ..................... 29Input/Output Signal Chart ....................................... 29System Description ................................................ 29AUTOMATIC SPEED CONTROL DEVICE (ASCD) ... 30System Description ................................................ 30Component Description .......................................... 31CAN COMMUNICATION .......................................... 32System Description ................................................ 32EVAPORATIVE EMISSION SYSTEM ....................... 33Description ............................................................. 33Component Inspection ........................................... 36Removal and Installation ........................................ 37How to Detect Fuel Vapor Leakage ....................... 37ON BOARD REFUELING VAPOR RECOVERY (ORVR) ...................................................................... 39System Description ................................................ 39Diagnostic Procedure ............................................. 40Component Inspection ........................................... 42POSITIVE CRANKCASE VENTILATION ................. 44Description ..............................................................44Component Inspection ............................................45NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS) ........................................................................46Description ..............................................................46ON BOARD DIAGNOSTIC (OBD) SYSTEM ............47Introduction ............................................................. 47Two Trip Detection Logic ........................................ 47Emission-related Diagnostic Information ................48Malfunction Indicator Lamp (MIL) ...........................62OBD System Operation Chart ................................65BASIC SERVICE PROCEDURE ...............................71Basic Inspection .....................................................71Idle Speed and Ignition Timing Check ....................76Procedure After Replacing ECM ............................76VIN Registration .....................................................76Exhaust Valve Timing Control Learning ..................76Accelerator Pedal Released Position Learning ...... 77Throttle Valve Closed Position Learning ................. 77Idle Air Volume Learning ........................................77Fuel Pressure Check ..............................................79TROUBLE DIAGNOSIS ............................................ 81Trouble Diagnosis Introduction ...............................81DTC Inspection Priority Chart ................................. 87Fail-safe Chart ........................................................89Symptom Matrix Chart ............................................90Engine Control Component Parts Location ............94Vacuum Hose Drawing .........................................100Circuit Diagram .....................................................101ECM Harness Connector Terminal Layout ...........103ECM Terminals and Reference Value ...................103CONSULT-III Function (ENGINE) .........................116Generic Scan Tool (GST) Function .......................125CONSULT-III Reference Value in Data Monitor ....127TROUBLE DIAGNOSIS - SPECIFICATION VALUE .132Description ............................................................132Testing Condition ..................................................132Inspection Procedure ............................................132Diagnostic Procedure ...........................................133TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-