INFINITI Q45 ENGINE CONTROL SYSTEM SECTION EC PDF

CONTENTS DIAGNOSTIC TROUBLE CODE INDEX.........................4 Alphabetical & P No. Index for DTC ...........................4 PRECAUTIONS AND PREPARATION............................8 Special Service Tool ....................................................8 Commercial Service Tools ...........................................8 Supplemental Restraint System (SRS) ″AIR BAG″ and ″SEAT BELT PRE-TENSIONER″.............10 Precautions for On Board Diagnostic (OBD) System of Engine and A/T.........................................10 Engine Fuel & Emission Control System ..................11 Precautions................................................................12 ENGINE AND EMISSION CONTROL OVERALL SYSTEM.........................................................................14 Circuit Diagram..........................................................14 System Diagram ........................................................16 Engine Control Component Parts Location...............17 Vacuum Hose Drawing ..............................................19 System Chart.............................................................20 ENGINE AND EMISSION BASIC CONTROL SYSTEM DESCRIPTION...............................................21 Multiport Fuel Injection (MFI) System .......................21 Electronic Ignition (EI) System ..................................23 Air Conditioning Cut Control......................................24 Fuel Cut Control (at no load & high engine speed)........................................................................25 EVAPORATIVE EMISSION SYSTEM ...........................26 Description.................................................................26 Inspection...................................................................26 Evaporative Emission Line Drawing..........................29 On Board Refueling Vapor Recovery (ORVR) ..........31 POSITIVE CRANKCASE VENTILATION......................36 Description.................................................................36 Inspection...................................................................36 BASIC SERVICE PROCEDURE...................................37 Fuel Pressure Release..............................................37 Fuel Pressure Check.................................................37 Injector Removal and Installation ..............................38 Throttle Opener..........................................................39 Fast Idle Cam (FIC) Inspection and Adjustment.......40 Direct Ignition System - How to Check Idle Speed and Ignition Timing.........................................40

ENGINE CONTROL SYSTEM SECTION EC - worldtracker.org worldtracker.org/.../Car%20Manuals/INFINITI/Infiniti%20Q45%20FY3...‎ The SRS system composition which is available to INFINITI Q45 is as follows: ... to service the system safely is included in the RS section of this Service Manual.

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