My diy-efi project
| Check out my new efi-project here!
This version is rather simple, and does not include
any fancy functions.
This version does control only injection, not ignition.
The system is currently mounted to my Ford Sierra 2.0 turbo. More information about Sierra here.
All the software running the EFI is written with
assembly-language. The software itself has been
burned to a flash-rom chip on the place of motherboard's
I have used potentiometer at cabin, which controls mixture, so that adjusting the engine is littlebit easier. I also have lambda-sensor mounted to exhaust, but it isn't used yet.
|How does it work?|
Four small magnets are glued to end of camshaft (picture), passing Hall-Effect
When IRQ occurs, every other time (one crankshaft turn) following is done:
Few pictures about project (quite early stage), in
"Professional" testing environment:
Second version of my ECU has these features:
FIRST PICTURES OF VER.2 ECU:
Year has changed, and I still have been very busy.. I have done only some minor modifications to my project-car, not this injection-system at all. :(
I have been busy with other projects, and haven't got time to do this.. :(
I should continue the project now, or else I'll get very busy getting the car in shape before next summer..
Version 2 should have been working in Sierra during summer 2001, but due lack of time I coudn't get it working as well as it should have. It picked too much interference from car, and was not stable enough. I got the car running, but the system jammed after running a while, and it had to be restarted. During the winter I'll get it working..
I'm going to publish some parts
of the shematics here, just to show what it looks like.
Here is the first one, showing some interfacing with AT-bus:
|Electronics Ecu Electronic Controlling Unit Motor Controlling Unit MOTEC HESTEC MOTRONIC MAGNETI MARELLI WEBER EFI ELECTRONIC FUEL INJECTION IGNITION DIY-EFI||Visitors:|