Hi guys,

I have recently bought a new original ecu, cause i have founded it in a good price, and mine ecu has been opened to change the electric resistance 22ohm after the error 19 i previously had.

Anyway, I will be pleased if you could tell me the way installing the new ecu step by step with the red key? i suppose......./ are some steps i have to follow ?

And secondly if anybody knows if after installing the new ecu, i may put back the old ecu, would it be working? (may I change from one ecu to another after)

i have tryed to find the answer in the forum by searcing, but haven t found anything

If there is an answer already in the forum forgive me and send me the link please,

My model is xtx 660 may of 2004 model (first, only and for sure the last owner of my xtx)

Thank you very much, co-xtx drivers