Tuning seicento speedo mileage 16 valve

[minimadsean]

hello i have a 2002 mpi seicento im trying to sort out the wiring to do a 16v conversion does anybody know if the mileage is stored in the dash or the ecu thanks sean

 

[fingers99]

Dash AFAIK.

 

[minimadsean]

Thanks there's a wire going from ecu to the dash I wondering if it's the pulse from speedo drive

 

[fingers99]

Not sure -- there's a shedload of wiring diagrams in the Seicento Technical Manual (in the downloads).

I'd suspect that the rev counter might want input via the ECU.