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BRC Sequent 24 User Manual

BRC Sequent 24
15 pages
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HANDBOOK
on SEQUENT 24
TA010976 - N. 1 - 17 - 11 - 2004
M.T.M. s.r.l.
Via La Morra, 1
12062 - Cherasco (Cn) - Italy
Tel. ++39 0172 48681
Fax ++39 0172 488237
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BRC Sequent 24 Specifications

General IconGeneral
BrandBRC
ModelSequent 24
CategoryPower Tool
LanguageEnglish

Summary

Introduction to Sequent 24 System

What is Sequent 24?

Overview of the BRC sequential injection system, highlighting ease of installation and low cost.

Differences from Previous Sequent Systems

Comparative analysis of key features and technical changes from prior Sequent system versions.

Understanding the Sequent 24 System Components

Sequent 24 ECU Overview

Details the operational unit controlling the system, focusing on its compact design and automotive standards compliance.

Changeover Switch Functionality

Explains the two-position switch for petrol-gas changeover and status visualization, including error reporting.

Gas System Components: Genius and Sensors

Introduces the pressure reducer, water temperature sensor, and gas pressure/temperature sensor.

Detailed System Components

Engine Water Temperature Sensor

Describes the resistive sensor fitted on the reducer, crucial for gas changing over strategies.

Fuel Rail and Integrated Sensors

Identifies the component bearing injectors, integrating gas pressure and temperature sensors.

BRC Injectors Specification

Specifies that the system exclusively uses BRC injectors and refers to power ratings.

MAP Sensor Usage

Identifies the MAP sensor as identical to Standard SEQUENT, used exclusively during self-mapping.

Harness and Injector Cut System

Sequent 24 Harness Design

Describes the harness, noting its slender design, 24-pole connector, and waterproof connectors.

Injector Cut Mechanism

Explains the novel positive-wire cutting method for injectors, simplifying wiring and reducing ECU wire entry.

Programming and Tune-Up Procedures

Sequent 24 File Types for Programming

Lists the .S19 and .FSL file types used for programming the ECU, with FSL containing operational information.

Assisted Personalised Programming

Outlines the steps for the assisted programming procedure, requiring the engine to be switched on.

Changing Over Operation

Discusses the changing over operation, highlighting differences from previous systems due to injector cut methods.

Tune-Up: Changing Over and Self-Mapping

Conditions for Changing Over

Details changing over conditions based on engine water temperature and time since starting, with examples.

Self-Mapping Procedure Introduction

Introduces self-mapping as a tune-up function, similar to assisted programming, noting map selection.

Utilities and Advanced Tuning

Self-Mapping Detailed Procedure

Explains the self-mapping procedure, its similarity to assisted programming, and map selection options.

System Information and Software Updates

Allows checking software version updates available for download to the ECU, displaying software name and version.

System Information Display

Software Version Information

Displays the software name and version information, specifically for the BRC SEQUENT 24 system.

Troubleshooting Common Problems

Annex A: ECU Pin Assignments

Annex B: ECU Pin Location

Annex C: General Electrical Diagram

Annex D: Injectors Cut Diagram

Annex E: Right or Left Injector Harness

Annex F: Universal Injector Harness