Trip Computers - Injection interface thingies

Post by **Jos360** » 30 Aug 2008 11:02 pm

Then i'll wait a day or two

Post by **foggyjames** » 03 Sep 2008 12:02 am

Adam is exactly right...I believe it 'counts' injector pulses via an inline connector (i.e. a sandwich connector between loom and one injector). The 'calibration factor' built into the computer allows you to 'tune' it.

On the other hand, the 240 instructions I have which DO feature the injection interface show the wires being connected to the ECU. I should probably dig those out...

cheers

James

Post by **Jos360** » 14 Sep 2008 08:08 pm

Found a little time already?

Post by **redline** » 15 Sep 2008 08:03 am

the trouble with Chris is that he has such a hectic life what with kiting ,motorsport ,women etc

finding a little time can take a while

Post by **Jos360** » 05 Oct 2008 04:54 pm

I am still interested, so a little reminder from me.

If i could only get a circuit diagram on a sheet of paper, or some very-high-res pictures of front and back of the circuit-board, i would be happy. Than i can make my own interface.

In november, i have to do a trackday with my 360 2.3 injection, and i would love to have my Driving Computer working by that time.

Post by **Duvel78** » 08 Nov 2008 05:24 pm

Bump!

Chris, how far are you now with the project?

I managed to find that magical black box, new and unused.

I've asked to friend engineer about the possibility of copies of that board, it should be dead easy and I can ask for prices. Let us know if you continue the project or not! How many members are still interested in it?

Post by **Jos360** » 08 Nov 2008 05:34 pm

I am! If you could only get a circuit diagram, i would be happy enough because i can solder one myself.

Post by **trabitom99** » 08 Nov 2008 05:56 pm

Duvel78 wrote:How many members are still interested in it?

I am !!!!

Tom

Post by **Duvel78** » 08 Nov 2008 05:59 pm

Let's wait Chris's answer before any decision, it would be stupid to do the job twice.

I won't make a circuit diagram, some elements are glued together and I can't read the specifications. (and I don't want to damage it

, 8 years to find it!! lol) I would give it to my friend engineer, with the number of copies to do.

Post by **trabitom99** » 08 Nov 2008 06:01 pm

You need to be of an extremely patient nature if you're a V300 fan and after rare accessories or rare models

<edit>
Aymat, Jos, do you have the speed sensors too? Any suggestions on the right type of sensor to look for? Randomhero (from whom I got the display panel originally) said Conrad make universal type ones ...
</edit>

Tom

Post by **Duvel78** » 08 Nov 2008 06:16 pm

Yes, I have the full kit.

I have analyzed all the elements, it's now 100% sure that ZEMCO made both the display and injection box. Concerning the sensors, they seem to me very standard, no make on it, I will take pictures later.

Post by **Chris_C** » 09 Nov 2008 02:00 am

Aymat, I've been having some issues hunting down the op amp chip, and havn't had time to see if an equiv exists.

Jos, I havn't drawn up a circuit diagram, it made more sense to me with everyone else wanting copies just to do identical copies of the boards, and get the components on stock.

I'm happy to do whatever on this one, if a suitable chip can be found (hmmm, Adam... that op amp chip we sussed for you the other day... still got the number? That might do the job..) then it's a lot less work overall.

Post by **Jos360** » 09 Nov 2008 01:32 pm

trabitom99 wrote:You need to be of an extremely patient nature if you're a V300 fan and after rare accessories or rare models

<edit>
Aymat, Jos, do you have the speed sensors too? Any suggestions on the right type of sensor to look for? Randomhero (from whom I got the display panel originally) said Conrad make universal type ones ...
</edit>

Tom

I have a complete set. My speed sensor is still in foil so i don't want to damage that. It doesn't seem to have any serial number on it, but it says "product number 4591: Speed sensor", but i think that is a Zemco internal number.

Post by **foggyjames** » 09 Nov 2008 01:51 pm

The speed sensor appears to be just a generic VR sensor (with two magnets for the halfshaft stub). It might be worth sticking a meter on the terminals to check, but I'm willing to bet that more or less any VR sensor (like the renix trigger sensor) would work.

cheers

James

Post by **Duvel78** » 09 Nov 2008 02:29 pm

Here is a close picture of the genuine chips, maybe someone has an idea about the chips to use to help you Chris? Contacting ZEMCO could help!

The board is a typical "made in Taïwan" board, weldings are bad and one seems to be broken

The first chip:

/I8252
MM74C74N

The second one:

029
LM
2903N