EDC15_rev1.3 ENG.pdf

EDC-15

Written by: Midas

Date: February 2010

Thanks to: Matt and Tomek

For more info: www.ecuconnections.com

Contact: Carmapping@gmail.com

Revision: 1.3

Index:

Introduction

Map explanations

Fuel related maps

1. Drivers wish

2. Torque limiter

3. Smoke limiter

4. Duration map

5. EGR map

6. Tuning the fuel maps

Turbo related maps

7. Turbo map

8. N75 map

9. Boost limiter map

10. Single value boost limiter

11. Tuning the turbo maps

Conclusion

Introduction:

The EDC15 is a much used ECU in "semi-modern" diesel cars like golf 4 TDI from 2000 on. It is

used in much more cars, but in the example's i give i used a 150hp golf 4 TDI. Winols is used to

change the maps. Some EDC15 ecu's do have more software banks, in my case there were 2

banks of software. There is only one of the two active at a moment but i decided to change

both banks. Some ecu's have even 3 or 4 banks. So just to be sure, change all banks exact the

same (Winols will do this automatically).

Map explanations:

The different maps of the EDC-15 can be grouped in 2 groups. The fuel related maps and the

turbo related maps. As the name says the fuel related maps control the quantity of injected

fuel, and the turbo maps control the turbo pressure. All examples in this document are taken

from an original VW Golf IV TDI PD 150hp.

Fuel related maps:

-Drivers Wish

-Torque limiter

-Smoke limiter

-Duration map

-(EGR map) not really a fuel map, but have to put it somewhere.

Turbo related maps:

-Turbo map

-N75 map

-Boost limiter map

-Single value boost limiter

Fuel related maps

1. Drivers wish Map:

General:

This map shows the required injected quantity diesel into the engine depending on the RPM

and the Throttle position. The output of this map is injected quantity (IQ) in mg diesel/stroke.

Picture 1.1: 3D view of the drivers wish map.

Factors & offsets:

All factors, offsets, axis descriptors and names are given by the pictures below.

Picture 1.2: The factor and offset from the map drivers wish

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