weston

Hi all I got the 3 lovely warning lights the other day so took it to my local garage and it came up with the pd filter being blocked so we put some cleaner in and had to run it at high revs to try and clean it but the lights still haven't gone out Will they go out after I've burnt all the fuel and cleaner out of my tank or should they go out instantly? Or I read somewhere else if I change to a straight pipe and bypas all the filter and cat and remap around it that should sort the problem has any body heard of that and does it work? because I don't really fancy a Lexus bill Your advice would be more than helpfull Matt