I figure someone else here has encountered this before and has the answer...
Building a 2003 996 3.6L engine, M96.03 with e-throttle (M620).
The core engine came with a cable operated throttle body, but the chassis we're installing it into is e-throttle.
We sourced a new 1999-2005 996 e-throttle body and it has a 4-bolt square mounting pattern and a round opening. Part # 996.105.115.01. It supersedes to a 997 number (997.605.115.01), the same part as the 997/S, 987/S, Cayenne, and 997 Turbo.
The intake manifold plenum (996.110.215.53) has a trapezoid 4-bolt pattern and an oblong opening. No other version plenum is listed in the 996 parts catalog.
Does anyone know the part number of an e-throttle body with the trapezoid bolt pattern? Or is the answer to use a 997 plenum tube?
Thanks,