Carrera Gauge Swap

[Trey T]

Sounds fishy....

People only flash ROM, right? If so, ROM doesn't get erased or reverted back unless there's another device/software piggy-back onto it to give it a command... which sound really odd.

I don't much about Porsche ECU programming, but to me, I have never heard of such thing for other cars.

Originally Posted by Reebuck1

... The guy who did my re-flash locked the DME so it would not revert back to the original 986 coding if I disconnected the battery.
SOOOOOOOO we are trying to work our way through this.
Any thoughts on how to get at the flash chip?? It would be easier if I could just do the mother board chip instead of having to go the DME path.

[Reebuck1]

I am no expert. In my case I installed a 3.4 996 motor in my 98 Boxster (986).
My 986 (2.5) DME could was not programed run the 3.4 996 motor without a re-flash.
I had two choices:
1) a USA flash that would use the existing secondary air pump and related vacuum tubing. or
2) a ROW (rest of the World) flash that would allow me to remove the secondary
air pump, etc.
I chose the second.
When I was at the Porsche dealer trying to get them to turn on my reciently installed cruse control. They made the comment that the DME was locked.
I assumed that it was done by the individual who did my ROW flash in order to keep the DME from reverting back to the original 2.5 USA flash should the battery be disconnected.. That assumption could have been incorrect.
Can anyone comment???