jbielefeld, to clarify, you still need to sim the O2's AND the SAP MAF? Or have you tried just doing a SIM for the SAP MAF and see if that alone is good enough to prevent an error code?
2003 BMW 330i ZHP
ESS Twin Screw Stage 2 - Wavetrac - Headers - Magnaflow - BMW Performance Intake and SSK
Turner Motorsports Reinforcements and Spacers - Powerflex - StopTech