over night a super rough idle

[tuckeruk]

hello all
new on here yes have 05 270 cdi been stood for year at least 120k its got chuffing injecter but used it in last few days an fine then over night on start up a real bad idle but revs in p seems 99% fine also maf sensor plugged in or out makes no diffrence while running no dash lights also any thoughts

thanks in advance everyone

 

[BlackC55]

I would fix the injector leak first and go from there.