Hi there, I'm looking for some advice/help. We are currently in the process of putting a 2003 ST4S Engine in the back of a 1965 Fiat 500. The original ECU was no good so we recently swapped it out to a 996R ECU (much easier to find than a st4s ECU apparently) and the bike runs well. However I feel the ECU will probably need a map to have the correct fueling etc on the ST4S, has anybody else done a similar thing with the ECUs or has any advice? Thanks in advance
