Nissan Skyline R34 Workshop Manual

SERVICEMANUAL

NISSAN MODEL R34 SERIES FOREWORD This Sewice Manual contains information concerning necessary service procedures and relevant data for the model R34 series. All information, illustrations and specifications contained in this Ser- vice Manual are based on the latest product information available at the time of publication. If your NISSAN model differs from the specifications contained in this Sewice Manual, consult your NISSAN distributor for information. The right is resewed to make changes in specifications and methods at any time without notice. QUICK REFERENCE INDEX I 0 1998 KISSAN MOTOR CO., LTD. Printed in Japan A11 rights reserved. No part of this Service Manual may be reproduced or stored in a retrieval system, or transmitted in any form, or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of Nissan Motor Company Ltd.. Tokyo, Japan.

HOW TO USE THIS MANUAL b This Service Manual only contains the service data specifications and trouble diagnosis information such as self-diagnosis, CONSULT, circuit diagram and so on. b For other information not specified in this manual, refer to Japanese version Service Manual (Pub. No. A006029) and wiring diagram manual (Pub. No. WD8EOR34JO). IMPORTANT SAFETY NOTICE The proper performance of service is essential for both the safety of the technician and the efficient functioning of the vehicle. The service methods in this Service Manual are described in such a manner that the service may be performed safely and accurately. Service varies with the procedures used, the skills of the technician and the tools and parts available. Accordingly, anyone using service procedures, took or parts which are not specifically recommended by NISSAN must first be completely satisfied that neither personal safety nor the vehicle's safety will be jeopardized by the service method selected.

GENERAL INFORMATION SECTION GI CONTENTS CONSULT CHECKING SYSTEM .................................... 2 IDENTIFICATION INFORMATION ................................... 3 Function and System Application ................................ 2 Model Variation ............................................................ 3 Lithium Battery Replacement ..................................... .2 Vehicle Identification Number ...................................... 4 .................................................... Checking Equipment 2 Vehicle Identification Plate ........................................... 4

CONSULT CHECKING SYSTEM Function and System Application Diagnostic test mode Work support Self-diagnostic results Trouble diagnostic record Function This mode enables a technician to adjust some devices faster and more accurately by following the indications on CONSULT. ECU discriminated No. Data monitor I I whether each system is "OK" or 'NG". l x H - 1 - Conducted by CONSULT instead of a technician to determine Function test Self-diagnostic results can be read and erased quickly. Current self-diagnostic results and all trouble diagnostic records previously stored can be read. Active test ECM part number L x: Applicable ENGINE x Classification number of a replacement ECU can be read to pre- vent an incorrect ECU from being installed. InputIOutput data in the ECM can be read. Lithium Battery Replacement x Diagnostic Test Mode in which CONSULT drives some actuators apart from the ECMs and also shifts some parameters in a specified range. ECM part number can be read. CONSULT contains a lithium battery. When replacing the battery obey the following: WARNING: Replace the lithium battery with SANYO Electric Co., Ltd., CR2032 only. Use of another battery may present a risk of fire or explosion. The battery may present a fire or chemical burn hazard if mistreated. Do not recharge, disassemble or dispose of in fire. Keep the battery out of reach of children and discard used battery conforming to the local regulations. AfT - - x Checking Equipment x - x x When ordering the below equipment, contact your NlSSAN distributor. Air bag - - - x ! Tool name ABS - x X - x NISSAN CONSULT @ CONSULT unit and accessories @ Program card UE990: For Automatic transmission of Dual rnatic M-ATx EE980: Except for Auto- matic transmission of Dual matic M-Atx x - -- X - Description - x - - x x

IDENTIFICATION INFORMATION Model Variation Model Body Grade Engine Transmission Rear differential carrier RH drive GGKBRTFR34UDA FS5R30A 2-door 25GT TURBO RB25DET . R200V GGKBRTAR34UDA RE4RO1 B RB20DE GGHAREARMEDA 1 GGKAREFRMEDA 1 RB25DE GGKAREARMEDA GGKBRTFRMUDA 25GT TURBO RB25DET R200V GGKBRTARMUDA RE4RO1B BGHAREFR34EDA FS5W71 C 20GT RB20DE BGHAREARMEDA RE4RO1 B R200 i% I BGKBRTFR34UDA FS5R30A $#i 25GT TURBO RB25DET R200V BGKBRTAR34UDA RE4RO1B Prefix and suffix designations: A: Standard - 1 TEG, TDestlon' U: intercooler turbocharger Model F: &speed manual transmission A: 4-speed automatic transmission 20GT, 25GT, 25GT-X T: 25GT TURBO k: Right-hand drive 2WD B: 2WD + ELECTRIC SUPER HlCAS GH: RB20DE GK: RB25DE, RB25DET 4-door Sedan G: 2-door Coupe

IDENTIFICATION INFORMATION -2 L .I Vehicle identification plate Vehicle Identification Number The stamping position for vehicle identification number is at the right side of cowl top panel. GF-HR34: From HR34-000001 GF-ER34: From ER34-000001 GF-ENR34: From ENR34-000001 -- Vehicle Identification Plate -- - NISSAN MOTOR CO,LTD.JAPAN CHASSlS NO YO DE CHASSIS A MOOEL WDELO A n7- me4 W I ~YLCOLOAWUIWQW( AA 0 z; ENGINE QA cc 2; Mom 2 I ;mi TRANS AXLE T77.b TRANS EJE A& PLANT nrwrr A TYP~ A Chassis No. A Model A ~ody color A Inner trim color A Engine type Displacement A Transmission type A Transaxle type

ENGINE CONTROL SYSTEM SECTION EC CONTENTS ENGINE AND EMISSION CONTROL OVERALL SYSTEM.. ....................................................................... ..2 System Description ...................................................... 2 Description of Engine Control ...................................... 2 System Diagram .......................................................... 3 Component Parts Location .......................................... 6 Vacuum Hose Drawing ................................................ 8 Circuit Diagram ........................................................ 11 .................................... ECM (.EM) Terminal Layout 13 TROUBLE DIAGNOSES ............................................... 15 Fail-safe and Backup Functions 15 RS ............................... Self-diagnosis .......................................................... 16 CONSULT .................................................................. I9 MA ............................................... Symptom Matrix Chart 28 Idle Speed Inspection and Adjustment ..................... ;35 ................ Ignition Timing Inspection and Adjustment 36 AirIFuel Ratio Inspection ........................................... 37 Fuel Pressure Inspection ........................................... 38 ECM (.TCM) InpuVOutput Signal Reference 9D ......................................................................... Value .39

ENGINE AND EMISSION CONTROL OVERALL SYSTEM A 1 System Description The engine control system, which performs various controls such as the fuel injection control and ignition timing control with a single control unit, has been adopted. Diagnostic system applicable to CONSULT has been adopted for easier inspection, service, and trouble diagnostic operations. Description of Engine Control I Description \ , Performs optimum fuel injection for every operation condition for improved exhaust performance and response. Adopts SOFlS (Sophisticated and Optimized Fuel Injection System) control for optimized fuel injection. Adopts airbuel ratio feedback learning control that performs com- 0 pensation of airfiuel ratio for improved drivability when the system is in a transitional condiiion due to sudden change in airfiuel ratro. Uses an ignition timing map stored in the control unit to perform controls so that the optimum ignition timing is obtained for every operating condition. Performs knock control, in which the ignition timing is advancedl retarded according to the presence of knocking, so that the opti- 0 mum i nition timing is obtained for every operating condition and type oPfue1. Performs feedback control to obtain the target idle speed for various conditions, such as during warm-up or when the air conditioner is actuated, via the AAC valve that adjusts the intake air amount when O the throttle valve is fully closed. Turns the fuel pump relay OWOFF according to the engine speed Fuel injection control Ignition timing control Idle speed control Fuel pump drive signal. In RB25DET model, FPCM (Fuel Pump Control Modulatoi) control O has been adopted for reduced idle noise. Heated oxygen sensor heater control Air conditioner cut control Promotes warm-up of the heated oxygen sensor for improved air1 fuel ratio feedback function. 0 Tums the air conditioner relay OFF at starting or during acceleration to reduce the engine load. 0 -- Auxiliary electric fan control Engine, M, TCS,ABS integrated control Tums the auxiliary electric fan relay ONIOFF according to the - engine coolant temperature signal and air conditioner signal. Reduces engine toque during gearshift or when TCS (Traction Control System) is being operated via a multiplex communication lino 0 - - Variable valve timing control According to the engine speed and load, controls the cam phase by hydraulic pressure to change intake valve open/close timing for Increased engine torque at low and middle speeds and for enhanced out~ut. I o I Canister purge control air intake valve control Air jet swirl control Performs duty control of the canister purge air according to various ooeratina conditions. 0 -r-~ e-- --- - Controls the intake air passage in the intake manifold collector to increase engine torque at low and middle speeds and to enhance output. 0 According to operation conditions, turns the air jet swirl control solenoid valve ONIOFF to openlclose the air jet swirl control valve for 0 pressure control stable combustion. Tums the Turbo pressure control solenoid valve ONIOFF according - to operation conditions. Ensures the vehicle's safe operation and enables the vehicle to be Fail-safe and backup controls Diagnostic system driven in an emergency when any of the system major components (microcomputer in the control unit, engine coolant temperature 0 sensor, etc.) fails. For easier trouble diagnosis, self-diagnostic system is adopted and the existing diagnostic system is modified so that CONSULT can be 0 used.

ENGINE AND EMISSION CONTROL OVERALL SYSTEM RB20DE (UB) System Diagram c ! I- a 5 a - w 2 LL Malfunction indicator lamp -! Fuel pump control signal Parwneutral position switch signal C Vehicle speed signal - - 5 Vehicle speed signal -

Nissan Skyline R34 Workshop Manual

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