Just curious I am building up my spare parts inventory
for a x-North America trip in the spring 06.

I bought a 025-906-021C ecu  (black plastic case)
a few days ago as a spare
So today as a test I pulled out my
was 025-906-021 without the c (aluminum case)
and put in the spare it seems to start up & run,but ...
has a hard start issue after warming up

anyone know how the C revision is different ?