As you all know jonny had his miltek downpipe & sports cat eventually fitted this week

while round yesterday jonny asked if i would just do a quick scan as his emission warning lights on (he's had a word with nick

) and he will sort it out so thats good,anyway we did a scan and as expected it flagged the 1 fault code
16517 Oxygen (Lambda) Sensor B1 S1: Response To Slow P0133 -35 -00
i checked the code on the ross tech wiki site and there isn't any code description for this one

bit of a strange one does anyone have any idea

?