Just had some custom carbon fibre backboxes with removable baffles installed last week. Car was running fine from tuesday till saturday. Didn't drive it on sunday but came to go to work this morning and the car would not go into positive boost. It drove and idles fine, no hesitation or misfire, or any sign something is wrong but the needle goes from negative pressure to just sitting dead on 0bar and i get no boost. Coming home i removed the baffles and i suddenly get boost and all is well again.

 

Am going to try it again with the baffles in tomorrow and see how it is.

 

Is it a random problem which probably will never happen again or have i made some stupid mistake?

 

Thanks,

 

Stu.

perhaps its sensing to much back pressure with the silencers in mate or the lamda sensor is sensing too much c/o with them in ?