Engine Performance problem
1996 Renault Megane 4 cyl Front Wheel Drive Manual 75000 miles
hi I have a renault megane 1.6 rxe that failed the mot on emissions. I was told by 2 diffrent garages that it was the cat at fault. However I have bought a new cat which does not fit and changed it for another which also does not fit. I have had a fault code reader test done and it cant find any faults either any idea as to what I can do.