Mod leak off

[JohnTransit97]

Thanks for everybodies advice on this forum. It is big help when trying to keep our smiley going for our family of 7. The last time it was MOt 'd the garage said that they did not want to see the minibus again. Maybe it was because of all the welding!!!
Any how enough talking. I am guessing having read the posts on here that if the mod leak off has been done and I am sometimes stiil getting like a misfire and loss of power that I could well need new injectors 'the standyne type' or as I was told the thow aways. Diesel specialist said they would cost £30-60.
Any suggestions please. Just to confirm.
Johntransit