Is this FIAT FIRE 1.2 SPI or MPI?

[clowndog]

Hi All,

I'm confused. I've completed a Punto 75 engine swap on my classic Panda.

Punto is 176A. (1995)

It has multiple injectors as shown below. But seems to be fitted with (from what I can gather ) a SPI intake manifold.

I only realised this when I bought an upgraded MPI throttle body 40mm from one of our members here. Sure enough it doesn't fit.


Can someone please post a picture of what a Punto 75 MPI manifold should look like? I keep searching it and I'm not sure if what I'm seeing is from the newer 188 punto.

Here is what I have fitted.

Thanks in advance

 

[s130]

I suspect that your assumed SPI manifold/unit is actually a SPI derivative where the SPI unit is basically the throttle, throttle position/angle and air flow sensor unit.

Would make cost and production sense when updating from SPI to MPI.

Also looking down the SPI unit there is no central fuel injection jet/sub assembly.

 

[clowndog]

I think you are right.

It definitely has the Muti point injection on the manifold. And there isn't another injector on the throttle body.

I also just found this thread where the author has the same set up and overcomes it with a custom made adaptor /spacer. I think that'll be the path I try out.
https://www.fiatforum.com/cinquecen...BxmSRsYDAWgAWUTca8vD9MakR_ZvO4uPQwgRfipxaBeYs

Thanks s130