Maker Pro
Maker Pro

Looking for ECU circuit diagrams ...

Richard@EELTD

Apr 1, 2011
4
Joined
Apr 1, 2011
Messages
4
Spend a huuuuuge amount of time googling the various ECUs people want me to repair ...
But I could really use some of the circuit diagrams.

Has anybody here come across these?

Any ideas wouldbe helpful.

:D
 

davenn

Moderator
Sep 5, 2009
14,254
Joined
Sep 5, 2009
Messages
14,254
I presume you are referring to engine management units for cars etc
seems to be something that manufacturers and licenced vehicle dealers keep very close to them :(

Dave
 

Resqueline

Jul 31, 2009
2,848
Joined
Jul 31, 2009
Messages
2,848
Yep, about the only ones you'll find reverse engineered (by enthusiasts) are old GM units.
 

MattyMatt

Mar 24, 2011
161
Joined
Mar 24, 2011
Messages
161
I used to have some old Saab ones (like pre-1994), but thats about it... and honestly, they were kinda hard to read (partly in Swedish, and the quality of the PDF was not fantastic). In general though... yeah its hard to find, due to the proprietary nature.
 

Richard@EELTD

Apr 1, 2011
4
Joined
Apr 1, 2011
Messages
4
I thought as much. Thought it might be worth seeing if anybody knew where to find 'em though :)
It's a pain working on them with nothing to help.
 

Resqueline

Jul 31, 2009
2,848
Joined
Jul 31, 2009
Messages
2,848
You don't say what brands of ECU's you get in for servicing. I'm sure you have used Google extensively but here's a nice homepage - with links to other pages as well.
 

Richard@EELTD

Apr 1, 2011
4
Joined
Apr 1, 2011
Messages
4
I'm getting all kinds from mechanics at the mo' mainly Bosch but hey :p

I'm only really dealing with the actual board and components, haven't really learned programming and the like yet.

Cheers for that page though :D Looks mighty interesting.
 

Resqueline

Jul 31, 2009
2,848
Joined
Jul 31, 2009
Messages
2,848
I'm a hardware guy myself (tho I dabbled with programming at school) but I've managed to reprogram an old GM ECU EPROM somewhat to better suit my engine.
There are links to sites with schematics (mostly GM) but I'm afraid there's not been much enthusiast hacking done on Bosch ECU's (or anything but GM for that matter).
 
Top