Bought the Citroen last week, drove it home at 100 kph no problems .
next day decided to bring her on the autobahn and got her up to 153 kph and she sat down on power and error messages sprang up about engine management (in german). at the same time the low petrol message came on .
went home got my diagnostics out and got 3 messages 2 saying misfire on cylinder 2 and 1 saying misfire possible because of low fuel.
so step 1 i filled up the fuel. still no power still cylinder 2 misfire.
step 2, replaced with new all the plugs and found 1 plug was black.
looking for next step advice, thank you.