Nissan 350Z Workshop Maunual 2006 (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: 2005 August 2006 350Z
ENGINE CONTROL SYSTEM
INDEX FOR DTC ........................................................ 8
DTC No. Index ......................................................... 8
Alphabetical Index .................................................. 12
PRECAUTIONS ........................................................ 16
Precautions for Supplemental Restraint System
(SRS) ?AIR BAG? and ?SEAT BELT PRE-TEN-
SIONER? ................................................................ 16
Precautions for Battery Service .............................. 16
On Board Diagnostic (OBD) System of Engine and
A/T .......................................................................... 16
Precaution .............................................................. 17
PREPARATION ......................................................... 20
Special Service Tools ............................................. 20
Commercial Service Tools ...................................... 21
ENGINE CONTROL SYSTEM .................................. 22
System Diagram (A/T Models) ............................... 22
System Diagram (M/T Models) .............................. 23
Multiport Fuel Injection (MFI) System .................... 24
Electronic Ignition (EI) System ............................... 26
Fuel Cut Control (at No Load and High Engine
Speed) .................................................................... 27
AIR CONDITIONING CUT CONTROL ..................... 28
Input/Output Signal Chart ....................................... 28
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ... 29
System Description ................................................ 29
Component Description .......................................... 30
CAN COMMUNICATION .......................................... 31
System Description ................................................ 31
EVAPORATIVE EMISSION SYSTEM ....................... 32
Description ............................................................. 32
Component Inspection ........................................... 35
Removal and Installation ........................................ 36
How to Detect Fuel Vapor Leakage ....................... 36
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ...................................................................... 39
System Description ................................................ 39
Diagnostic Procedure ............................................. 40
Component Inspection ........................................... 42
POSITIVE CRANKCASE VENTILATION ................. 44
Description ..............................................................44
Component Inspection ............................................44
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 ................................66
BASIC SERVICE PROCEDURE ...............................71
Basic Inspection .....................................................71
Idle Speed and Ignition Timing Check .................... 76
VIN Registration .....................................................77
Exhaust Valve Timing Control Learning (M/T Mod-
els) .......................................................................... 78
Accelerator Pedal Released Position Learning ...... 78
Throttle Valve Closed Position Learning ................. 79
Idle Air Volume Learning ........................................79
Fuel Pressure Check ..............................................81
TROUBLE DIAGNOSIS ............................................ 83
Trouble Diagnosis Introduction ...............................83
DTC Inspection Priority Chart .................................89
Fail-safe Chart ........................................................91
Symptom Matrix Chart ............................................92
Engine Control Component Parts Location (A/T
Models) ...................................................................96
Engine Control Component Parts Location (M/T
Models) .................................................................102
Vacuum Hose Drawing .........................................108
Circuit Diagram .....................................................109
ECM Harness Connector Terminal Layout ............111
ECM Terminals and Reference Value ....................111
CONSULT-II Function (ENGINE) ..........................122
Generic Scan Tool (GST) Function .......................135
CONSULT-II Reference Value in Data Monitor .....137
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................141
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .143