hi guys need a bit of help can you use a 4wd ecu in a 2wd and vise versa cheers

 

Using a 4wd ecu in a 2wd car: Yes, if you change the wires from the TPS and use a 4wd TPS. You cannot use closed loop unless you connect a Oxygen sensor.
The chip also needs to be setup for a 2wd car and the knock sensor must be taken out of the setup. Same applies to closed loop, it must be taken out or a sensor must be added.
Using a 2wd ecu on a 4wd is also possible, again you have to change the wires on the TPS and use a 2wd TPS. And again the chip must be mapped for a 4wd engine.

 

he means the two outer wires on the tps switch need to be swapped over first but
in simple terms yes you can

much easier using the search facility though as questions like this been answered in depth a bilion times