Advertisement

5
Duramax LB7/LLY DSP
User Guide
Cindy Myers

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Duramax LB7 DSP5 and is the answer not in the manual?

Questions and answers

Summary of Contents for EFILive Duramax LB7 DSP5

  • Page 1 Duramax LB7/LLY DSP User Guide Cindy Myers...
  • Page 2 Duramax LB7/LLY DSP User Guide © 1998 EFILive Limited All rights reserved First published 18 January, 2007 Revised 29 August 2018 EFILive, EFILive FlashScan and EFILive AutoCal are registered trademarks of EFILive Limited. All other trademarks belong to their respective owners.
  • Page 3: Table Of Contents

    Software ........................4 Overview ........................4 Requirements ......................4 Additional Support Resources ..................5 ......................6 DSP Upgrade ........................6 What is EFILive DSP ? ....................6 Upgrade the Operating System to DSP ..............6 Identify Correct Script ....................7 LB7 DSP Script Files ....................
  • Page 4 Valet Mode ..................14 A0142, A0143, A0144, A0145 – DSP switching voltages ........15 Monitoring DSP status in the Scantool ..............15 Wiring the DSP Switch ....................16 LB7 ......................... 16 LLY ......................... 16 Troubleshooting Guide ....................16 - 2 - support@efilive.com www.efilive.com...
  • Page 5: Prerequisites

    Duramax LB7/LLY DSP5 User Guide Prerequisites Intended Audience EFILive Customers using the V8 Scan and Tune Tool software. Computer Knowledge It is expected that readers have a basic understanding of:  The Windows operating system;  Starting and using Windows applications;...
  • Page 6: Introduction

    Duramax LB7/LLY DSP5 User Guide Introduction Introduction This document is intended to assist EFILive customers with the basic operations and steps necessary to setup EFILive's DSP custom operating systems for the Duramax LB7 and LLY ECMs. Support Retirement This document was originally created for DSP...
  • Page 7: Additional Support Resources

    Duramax LB7/LLY DSP5 User Guide The latest software is available for download from the EFILive website here: http://www.efilive.com/latest/cat/download-efilive Additional Support Resources If, after reviewing this guide, further assistance is required please contact the EFILive Authorised Reseller from whom you purchased your product. They are your first point of contact for EFILive support related inquiries.
  • Page 8: Dsp Upgrade

    V7 for the DSP operating system upgrade to be available. Using the EFILive V7.5 Tuning Tool, open your tune file and click on the 'Upgrade OS' tab. Select which operating system upgrade you wish to apply (only choose one), then click the “Apply Upgrade”...
  • Page 9: Identify Correct Script

    Duramax LB7/LLY DSP5 User Guide Reopen the file so EFILive will recognise the file is a DSP converted operating system. Please also take note of the new operating system (OS) number of the converted file. Identify Correct Script Users MUST run script files to populate maps. EFILive DOES NOT automatically populate DSP tables with factory maps during the upgrade like other DSP platforms.
  • Page 10: Lb7 Dsp 2 Script Files

    15228758 05875801 DSP2_LLY.txt (select metric or imperial) Run Script Navigate to the Edit -> Run Script menu option. Select Open to and choose script identified in the step above. Select Run to apply the script. - 8 - support@efilive.com www.efilive.com...
  • Page 11: Flashing Dsp Tune File

    1. You may return your ECM to its GM factory condition at any time, by reflashing a stock GM Operating System and calibration over the top of any EFILive Custom Operating System using the Full Flash option.
  • Page 12: Wiring The Dsp Switch

    Also shown is the approx. voltage the ECM will measure for each resistance. The switching voltages are configurable within EFILive, however, the values below give a good even separation of switch points. The 0.1uF capacitor shown in red is optional, it is used to reduce switch bounce.
  • Page 13: Wiring The Dsp Output

    Choose the ECM type and wire the output as follows. The connections to the ECM output are made to the following pins: LB7 - Output = Blue connector, pin 39 LLY - Output = Blue connector, pin 27 - 11 - support@efilive.com www.efilive.com...
  • Page 14: Lb7 Ecm Connector Wiring Installation

    LB7 ECM Connector wiring installation – Remove TCM cover – Lift out TCM – Disconnect TCM – Remove ECM cover – Unbolt blue plug – Remove blue cover – Pins now exposed – Insert new pin/wire – Re-assemble - 12 - support@efilive.com www.efilive.com...
  • Page 15: Lly Ecm Blue Connector Wiring Installation

    The LLY ECM also has the connector pin numbers stamped on its case for confirmation, though these can be difficult to see when the ECM is fitted to the vehicle. All installation photos courtesy of Tony Nostedt - 13 - support@efilive.com www.efilive.com...
  • Page 16: Important Dsp Parameters And Tables

    It is highly recommended that the valet switch is not easily accessible so it cannot be accidentally engaged. The wiring for this switch can be found on previous pages of this document. - 14 - support@efilive.com www.efilive.com...
  • Page 17: A0142, A0143, A0144, A0145 - Dsp Switching Voltages

    You can monitor the DSP switch data using the following PID’s – GM.DSP5_VOLTS_DMA – This will show the measured voltage at the ECM pin. GM.DSP5_TUNE_DMA – This PID will show the current tune number the ECM is using. - 15 - support@efilive.com www.efilive.com...
  • Page 18: Wiring The Dsp Switch

    1. Check the operational settings in the DSP Output #1 section of the *.ctz file to ensure the output behaves correctly. {A0115}-{A0124}. 2. Check Voltage settings by monitoring the voltage PID and tune number using the EFILive Scan Tool. 3. Check wiring installation; specifically check that the pins are properly fitted to the ECM.

This manual is also suitable for:

Duramax lly dsp5

Table of Contents