My '07 CooperS has no fancy mods - I spend too much on replacing broken stock parts. Today, I suspect I need an new ECU. I was shifting into 4th and when I let the clutch out, the motor died, allowing me to coast almost halfway home. Bentley's Bible tells me that the ECU is bad, since the Main ECU relay is connecting juice to the ECU, but the ECU does not send ground to the fuel pump relay. Does anybody know who can diag the ECU reliably?