Running, but think it may have a bad ECU

[1993TalonTsiAWD]

Well it runs, but not very well. It will hold a idle pretty well, but not what it should do. If I go easy on it, and shift around 3000-3500 it will studder, but make it, If I hammer on it a bit, it will stick at a RPM and slowly go down, somtimes even killing it. Some times when I start it it will run fine, and rev fine, other times I starting, it rev's sluggsh, and very jittery, I have replaced the wires, and it has new plugs, but I think they may have gapped them wrong. I think it's supposed to be .023 and they gapped them to .035-.049 the non turbo specs. I don't think thats the reason as I re gapped them and no change.

Now my question is, can the ecu go bad, but not throw a CEL, because I have another ECU sitting right here I may put in, it's not Eprom, but It will work, I have already checked for leaking caps, which I found none. My car does smell funny inside, but not sure it's rotten fish or seafood. Can a ecu go out with only 115,000 miles, and it has sit for at least a year and a half. I did replace the o2, but no real change, One minute I start it up, it runs horrible, the next it runs fine.

Please help any way possible, I would like to go back to posting in the tuning section more

thanks Derek

 

[91talontsiturbo]

same problem! car ran fine awile back then i let it sit for the winter and went to go start it back up in the spring and it wouldnt stay running at all the ecu would shut off the mpi relay (fuel pump relay) about 2 seconds after startup and die, thot the caps wer fine when i last checked em and when i checked em agin i found the slightest bit of electrolite running down my board but i guess eaven the slightest bit can ruin it,
check the ecu agin with a magnifing glass , you could barly eaven see where the stuff was runnin down my board and it fried it