ECU identification Options

[tradisrad]

Hi 914 club, I am a new member to the club but a long time owner (since 1989),
Any how, I am looking to identify the make of my ECU, I know it is as simple as looking at the sticker on top of the ECU, however at some point the ECU I am currently using was spray painted and then the paint was scratched away to reveal the sticker (not by me) and when the paint was scratched away the numbers from the sticker were also removed, and I can not make out the last few critical numbers.

So my big question is how in the world can I tell what ECU I have? Is there any internal markings that may lead me to my answer?

What I do know, is that it is D-jet, it has a idle mixture knob and I am running it on a 2.0. My throttle body is a '74, but my head temp is a '73 w/o a ballast (and yes I am having some issues).

Thanks in advance,
-Rob

[tradisrad]

Bleyseng,
I do understand that the MPS should read about 1.4 hg at WOT, weher all 4 of ours tested to about 1.18 hg at WOT. I dont know if all 4 are bad or if its a meter issue, I will test one of the units on another meter this afternoon and see if I can get that 1.4 hg. One of the units has had been adjusted and the cap/stop screw is not glued in so we played with it a bit and were unable to get the inductance to read any higher than the 1.18 at WOT. So I am assuming at this point its a meter issue, my meter is not the LCR55.

I did change the head temp sensor and the car is running a lot better, the missing is gone, however I do have a bit of hunting at idle now so I will check for a intake leak.

Any one else have any tips on determining what my ECU part is?

-Rob