DIY ENGINE MANAGEMENT SYSTEM: TAKE FULL

CONTROL OF YOUR CAR

Ryan UeltschiEastern Kentucky University

Department of Technology : NET Program

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OUTLINE

This presentation will give a brief overview of my project. It will explain the presented problem and solution as well as the motivation, assumptions, and future work.

Pictures will be included for further understanding of the work I have completed.

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MOTIVATION My automotive interests

mixed with my technology and electronics interests.

I wanted to challenge myself I wanted to further my

knowledge in general electronics and automotive electronics.

I needed an engine management system for my car.

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INTRODUCTION My project covers both fields of

Electricity & Electronics and Computer Systems

I have been researching in plan to build one of these specific systems for well over a year Electronic components needed Wiring diagrams Sensors Software

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INTRODUCTION

Essential Theory:I. Construct the physical systemII. Create a wiring harnessIII. Install software on laptopIV. Install firmware on systemV. Wire in additional needed

sensorsVI. Install complete system into carVII. Tune

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PROBLEM STATEMENT

When an automobile’s engine becomes highly modified, the factory issued engine control unit (ECU) becomes insufficient for the engine’s requirements.

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PROBLEM STATEMENT

Sub Problems Fuel trim adjustments Timing adjustments Idle settings Sensors

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ASSUMPTIONS

To build: the user will have a working knowledge and/or willing to educate themselves in electronic components, electricity, soldering, printed circuit boards, wiring, and slight advanced workings of a computer.

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ASSUMPTIONS

To use: the user must know general car engine knowledge and how they work and what the engine will need at a given point in time

Can hire someone to do the final tuning part.

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PROPOSED SOLUTION In order to find a solution to my problem

I had to decide on an EMS Research, research, research Build one myself Buy a MegaSquirt DIY EFI kit from

www.diyautotune.com Buy the other components needed

specifically for my car Download/install software Assembly Testing and troubleshooting

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PARTS LIST All from diyautotune.com

DB37 solder cup connector for MS3X - $5.00 MegaSquirt Wiring Bundle - 23" Long -

$15.00 MegaSquirt - III MS3X Expansion Card -

$90.00 MegaSquirt - III w/PCB V3.0 - Unassembled

Kit - $365.00 MegaSquirt 3X Wiring Bundle - 23" long -

$18.00 64 pin connector from mouser electronics -

$20

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PARTS

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BOARD DIAGRAM

http://westfieldmx5.devocht.com

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BUILDING

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BUILDING

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BUILDING

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BUILDING

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WIRING DIAGRAMhttp://www.msextra.com

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WIRING DIAGRAM

http://westfieldmx5.devocht.com

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BUILDING

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BUILDING

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RESULTS

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RESULTS

A fully functional standalone Engine Management System

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CONCLUSIONS I am now able to incorporate a customizable

engine management system in my car to monitor, data log, and make adjustments as needed.

Individual Learning: Time Management Project Planning Increased knowledge in general electronics and

automobile electronics Soldering skills Engine management/tuning

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FUTURE WORK

Building these for future cars Knowing how to tune electronic

fuel injection engines, to help myself and others

Adding Bluetooth module Connecting with an android device

Contact: ryan_ueltschi@mymail.eku.edu

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REFERENCES Braineack (2007, October 28). How to make and install your own Diy MegaSquirt [Online

forum comment]. Retrieved from http://www.miataturbo.net/useful-saved-posts-8/how-make-install-your-own-diy- megasquirt-13676/

Westfield, F. (2013) How to build a full plug and play MS3-Extra for a 1.6 or 1.8 NA Miata. Blog. Retrieved from http://westfieldmx5.devocht.com/megasquirt/90-97-ms3/

Murray, J. (2013, March 23) Megasquirt 3 – Loading Firmware. Web page. Retrieved from http://www.msextra.com/doc/ms3/firmware.html

Cardriverx ( 2008, July 25) Info/Instructions for Wells TPS201 TPS ** PICTURES!. [Online forum comment]. Retrieved from http://www.miataturbo.net/megasquirt-18/info-

instructions-wells-tps201-tps-**-pictures-23979/

Marc D. (2009, October 13). Using TunerStudioMS for Tuning Megasquirt – Guide. [Online forum comment]. Retrieved from http://www.miataturbo.net/megasquirt-18/using-tunerstudioms-tuning-megasquirt-guide-40159/

Murray, J., Culver, K. (2010, November 23). Megasquirt – Stim Testing. Web page. Retrieved from http://www.msextra.com/doc/general/stimtesting.html

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ACKNOWLEDGEMENTS

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QUESTIONS?