SundanceUK

Hi, all, I’ve bought a TDi tuning chip and have fallen at the first hurdle. I’m required to first remove the female connector to the fuel sensor, although it’s not immediately obvious how to do this. There seems to be a tab of sorts but I can’t tell what to do with it and don’t want to force anything. I’ve looked at the male connector on the chip harness for clues but I’m drawing a blank. Can anyone please help? Please see attached pic.