THE BEST SIDE OF PEUGEOT ADBLUE DELETE

Due to the fact very last diagnostics / code clearing drove 3 miles and lightweight back on / motor turned off straight absent ad blue filler cap eradicated and tried to blow/suck by cap to discover if ventilated. Cap will not be ventilated. left cap off and tissue in filler neck for 80 miles/no lights arrived on.AdBlue is starting to become progre