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Hi I was wondering if anyone can help me out and see if my wiring pin out is correct. I have attached my wiring chart I made to make my own PnP to the factory engine harness along with the factory ECU pinout and their functions. I have a red box G4 Extreme with CAN port. I have a BMW M3 with S50B32 but I will be adding an ethanol content sensor for now as I would like to tune the car to run E85 on 600CC injectors while I put together parts for a turbo build as I will be adding a boost controller and probably an anti lag switch. Am I fine running the factory dual narrow band sensors or should I get an Innovate LC-2 and place it on the 3-6 cylinder bank exhaust manifold or would I want to run dual lambda controllers over CAN? Link Wiring .xlsx MSS50.pdf