Thanks jucafodisport.
Not the best news, but thanks for your concern.
Thats pretty much what Vukie told me.
The car seems to be running ok, no smoke, no obvious loss of power. The idle, stopped in traffic does have a bit of a lumpy feel. The start up diagnostic had a t___ code, which from the forum I believe is fuel system. I cleared it and it hasn't come back yet(2 days).
I'll get a diagnostic done at a local Renault place and see if theres any major damage showing up.
I'm assuming the plugs wern't changed?
Just goes to show-ALWAYS get an independent inspection.
My fault for being to eager.