Re-setting ECU's on a '92 Diablo

Is it true that there is a "re-set" button on the Weber/Marelli ECU for this car --- and, that it is activated simply by inserting a small object (e.g., paper clip end) into the hole and depressing ???

If so, does this merely switch off the CEL(s) ? Or, does it also clear any stored codes ?

Will it re-flash / re-calibrate the ECU, or have any potential to do any harm to the unit ?

 

Thanks Mick ---

Don't remember where I thought I read Marelli was involved somehow with the ECU design ?? At any rate, thanks for clarifying that.

Would you care to describe for me which wire needs to be shunted to ground? Or, is there another thread to this?

I suspect the CEL's have popped because of an ongoing prior "low battery voltage / emissions sensor" condition --- which we have now rectified. So, now that the electrical system is again healthy, I wanted to clear the codes / CEL's, go through the ECU re-learn routine, and confirm that the errors do not return.

I realize we are "learning as we go" with this car, but we are in the middle of nowhere with respect to any Lambo techs in the area ----- so, careful, DIY is our best option. And, I certainly do appreciate any instruction from folks such as yourself

 

Really? I can't imagine why --- after all, replacement ECU's cost only about $8,000 each!!!!

If someone could confirm for me precisely which lead to short, I'd give it a go......But, I'm certainly not inclined to go poking around aimlessly with those things until I stumble across the correct circuit