On the way home last night, my ("new" to me) 09 Cayenne (V6, 6 - spd manual) suddenly lost power. ~50K miles. The check engine light appeared. The code is P2293. Fuel pressure regulator. I've always done my own work on my Porsches, BMWs and others cars. I'm not able to find a manual for the 2009 or trouble shooting procedures, etc. The basics seem straight forward, check the fuel pressure, etc. However, the Cayenne is a new beast to me. I don't know were the test ports are located, steps for isolating pump from press reg value etc. I don't want to replace parts until I can isolate the problem.