I’ve had to remove the Akrapovic system from my Multi V4 for the Spanish Mot test. All went well removing it and installing the catalytic converter. I can see that the lambda sensor 6 plugs in on the lower left behind the low exhaust shield but I can’t for the life of me see where the number 5 sensor plugs into. I took the seat off but nothing was apparent. The number 5 sensor is on the right hand side of the catalytic converter. Anyone got any suggestions or info?