ecu remmaping

[amitoha23]

HI
i have punto 1.1 with 40 mm tb and punto 75 cam .
my ecu have chip in it from chip2race company.
i was told that the chip can deal only with standard engine and when we upgrade them a little , the ecu can not cope with the improvements
and will need remapping . in israel we do not have any one who can re map magneti marelli ecu's , so i wander can i do this at home using kwp2000 , or somthing like that ??
how can i remap my ecu ?
what equipment do i need ?

thank you all
Amit

[lowtechguy]

Firstly I find that hard to believe as this is a common ecu. Double check.

As stated on the other forum KWP2000 is the protocol to speak OBD (sensors and error codes) not the actual data map/grids.

You need remap software either via the 3 pin connector and use the KWP2000 protocol to remap with the special software or ideally remove the chip from the back of the ecu, and use a 16pin eprom connector to read off the chip.

It is going to be better to use a non coded chip as a base however the data files can be bought for low money anyway.

If you have an idea as to what you want (peak ignition curve/% fuel increase across the range) etc then perhaps you can contact a UK company, however this is not going to be half as good as setting up properly in your country.

Have you considered a carb conversion so you dont need an ecu? Certain other things will need to be converted but its all available in second hand parts and would be cheaper than the £1000's it costs to buy remapping software.

Then again something like the an aftermarket ecu would be better?

The limit as you can read in other sections is 80bhp anyway with the single injector so it all depends where you want to go so you can choose which path is best