Williams ECU identify - Ph1 or Ph2 ?

[Yanoo_]

Is it possible to identify Williams Ph1 and Ph2 ECU by number? I know both are 107 and Ph2 equipped with immobiliser. But is there any specific numbersequence between intermediate numbers on Ph1 or Ph2 ECU?

[Justin..]

Williams dont have the immobiliser on the ECU ? unless they do abroad?

[Justin..]

I mean any Williams be it ph1/2/3

[Yanoo_]

Williams dont have the immobiliser on the ECU ? unless they do abroad?
I have Williams Ph1 with genuine ECU (and no immobiliser). AFAIK I have standard ECU, no remapped or modified. The other Hungarian Ph1 Williams also haven't got immo. A friend of mine is just now trying to use a (probably) Ph2 Williams ECU in his Ph1 Valver (Williams b/e, Valver head) but he has some issues, the engine often stops after start. He would like to know whether his ECU is a Ph1 or Ph2.

[Wobba]

There should be no issue using that ECU in the car with that engine. I believe Ph1 Willy ECU's say 'FENIX' on them. Mine did. Maybe Ph2 do as well.