Weird issue at idle that I haven't ever encountered

[tunernewb92]

Ok so i posted about buying a car for really cheap but it has a minor problem which is:

The current owner says that the car doesn't run very well at idle and will shut off if not kept running and that he hears a clicking noise when he is sitting in the car. He swears it is coming from the ECU because if he puts his hand on the ECU its moving with the clicks. If he disconnects the battery, when the car cranks up the next day it runs perfect, but after that it goes back to rough if you crank it again. Any ideas on that?

Why would the ECU be clicking, I know my trucks injectors would click loud could this be that also?

Could the rough idle be a turbo system leak, nasty trashy fuel, or the ECU.

Any help would be much appreciated. I don't know how to search for something like that issue so I figured I post up.

The car has around 270k miles on it, most of the parts are not orginal besides the block, rods, pistons, and oil pan and ecu.

 

[LandoAWD]

http://www.dsmtuners.com/forums/search.php?searchid=5278300

I chose "ECU" and "CLICKING" as my search terms.

ECU might be toast. Try to borrow someones to verify, or smell it. Fish smell = bad.

 

[atlguyinbama]

Id have to say it sounds like the caps have leaked in the ecu. When this happens it can cause all types of problems. If its a good enough deal I say buy it, look on the classifieds for another ecu, and have fun with it.