Subject: check engine light @ 4,000 rpms
Question:

Well, heres a picture of the computer... http://home.comcast.net/~angelsrntsn/DSC00349.JPG
today, I coded it and it gave me a ecm bad, then gave me system okay...i tried three different times and still said system ok..no codes. Car still cutting out at 4g and runs rough. My wife took computer out and wiped off the gross stuff on ecm and we pluged it back in and same problem but when she was wiping it she seen dark black stuff coming from 2 of the capacitors. (guessing that is what is leaking). Do you know of somewhere cheat to repair ecm, that will do a good job? LOL thanks for you advice.
Answer: Duane,
Thank you very much for the excellent pic of your ECU. It's clear there are leaking capacitor and it may very well be causing your RPM cut. Your car does come with an RPM limiter that gets enabled if you're redlining your engine, but if your damaged ECU is not recognizing your RPM readings, it can cause that safety feature to be tripped early; like at 4000 RPM.

The site I had listed in my initial response gives several links of places that service ECUs for your car. Many require a core (your old ECU) in exchange for a working on. Here's that link again:
http://90gsx.com/eclipse/cap/caps.htm

Contact those businesses for availablity and pricing. You can even check eBay for used ECUs. Any '92-94 Eclipse/Talon/Laser, non-turbo m/t ECU will work. I'd also like to know if I can use that picture you took of your leaking capacitors and put it on my web site? It's an excellent example of what others can look for if they suspect a faulty ECU. Thanks!
Good luck!