dsddcd

Has anyone purchased a new ECM to send off and have modified and retained the factory ECM so the car can go back to stock?

ClassJ

I like the idea but the question is what happens when you throw back in an ECU that has been out of the car for many years and miles?

mkpierro

I was think the same thing. I read somewhere it could cost $5,000 for the new ECM but have not tried to verify that number.

fastforddriver

ECM swaps are not uncommon in other makes of cars. Keep one OEM and the other modified. Just swap and go as necessary.

The mileage, etc is not stored in the ECM as far as I know. They do go bad on occasion on their own and have to be swapped with new ones.

dsddcd

Anyone know if a PWIS III can do the swap offline or if Germany has to send codes?

minthral

I don't think it works that way... i think you need program the ECU to mate with the car first which requires Porsche tools. Otherwise its just a doorstop. Maybe you can ask Cobb if they can do that.