Hi, after having tracked this forum almost daily, just decided to register and become an "active" member. I'm trying to find information about where what's wired to my ECU. I have a end 2001 Seicento, the ECU code is >> I AW 4AF M7. I've got a workshop manual (in Holland it's called "vraagbaak", same as "your" Heynes manuals I recon) but that's meant for Seicento's optu 2000.

what is it your actually trying to do with the ECU?

First of all fitting a rev. counter but I'm also thinking of puchasing a SMT6 piggyback unit or even a DTA (I've found someone who is selling his unit).

....this is the counter by the way:

Nice tape mod isn't it?


.....these nifty gauges are mounted on the left pillarpod, so this monster tacho should compensate (left pillarpods offcourse cause we're driving the wrong side of the road)

any help?
https://www.fiatforum.com/showthread.php?t=38782

not sure of the huuuuge rev counter?but like the other 2 gauges in the pods.couldn you get a sei OE rev counter?

like this?

Nah, don't really like that standard rev counter.

Thnx for the thread but the wiring of the counter is, I think quit logical. There are a red, black and white wire and I assume they are for +, - and a dimmer signal the other green wire then is most likely to be for the rev signal. I have a manual of pre 2001 Sei's with a clear description for a Weber Marelli IAW 16FM ECU and don't know if the wiring is the same as my IAW 4AF M7 ECU.