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MY03 996 GT3 Cup Car, Check engine light is on, Cannot connect to DME with multiple scanners including Porsche factory scanner. The Bosch ECU MS3.2 B 261 208 260. Can anyone confirm that this is the correct Cup Car DME? Does anyone have MY03 996 Cup Car wiring diagram so I can confirm continuity from the DME to the OBDII connector? Any other suggestions for troubleshooting this problem?