A friend has a cinq turbo.
With an kdfi (megasquirt)

Runs about 300Km to 30 liters of fuel.

With the old novitec setup it ran 450km on 30 liters of fuel.

Engine is running to rich when it's not on load.
Cruising down the highway at 120Km/h there is no turbo pressure but a vaccum of -0.3 bar.
So the normal ECU handeld this and the novitec injector was off.

Now with the new system both injectors are working.

We are looking for a table of the original ECU.

Why:

we want to program the first injector the same way so the car uses less fuel.

The second injector will beprogrammed to start spraying at -0.1 bar and so on.

I hope soem folks here have a table of the original ECU and wants to help us:worship:

Current tables (engine is 1108CC):

we need more details on the set up also feel free to post datalogs and the ecu file (msq)


my car is mpi on megasquirt and i get about 200miles on a full tank which is a lot of mixed driving.

megasquirt is capable of staged injection which is what you need

Engine is a stock 1108

Head has been modified.
The part were the valves are has been machined so it's round, to lower the compression.

Pistons have been machined so they are flat.

Logs etcetera will come as soon as possible.

was the engine mods done before the megasquirt was added?

you have a strange setup there.

why not try running staged. then set the second injector to come in at 100kpa
it would be much easier to tune that way with just one map

I could quote (it's a small bit of work to make it representable, and for now I am really lazy) you the original Cinq fuel map, but it will not help you even one bit. This is because the map is in relation to some basic fuel pre-calculations and is not at all directly connected to the injection time. Why/how exactly you can check here:

https://www.fiatforum.com/cinquecento-seicento/253576-iaw-ecu-live-mapping-tech-info.html

Lots of reading though, not sure you are that keen

But, back to the subject of the problem at hand, pardon my total ignorance about MS, but shouldn't it work in lambda closed loop to get the right fuel at cruise with -0.3bar vacum?