No on the flash, no on the sensor. I'll do that now and report back.If the ECU has been flashed the exhaust valve servo should be disabled anyway. If there's no lambda sensor fitted to the new system I suspect it's probably that causing the error. There is a bush behind the pre-muffler to fit the sensor to the Akrapovic system.
Three options for flashing the Ecu, but you will always need to remove it from the bike:Yep it was the O2 sensor. Light is off now. Wondering where I can get that map/flash? Is there one specific for the Akra full system?