My clio has been juddering a lot recently on idle, I narrowed it down to a misfire on the fourth cylinder. The leads have been checked as well as a compression test on the cylinder in question and no problems seem to have arisen from them. I took it to a mechanic and after finding out the above, he said it is probably a faulty injector. I think this makes sense as I have read on this site that if it was the coil
, 2 cylinders (first and fourth) would be misfiring together.
I have bought a 2nd hand rail + injectors for an X reg (mine is V) and I was just wondering whether the injectors could simply be swapped? I know that the ECU
sends a signal to the injectors, but will it cause more problems if I swap them or should it work fine?
A second option I have thought of is to remove all 4 injectors that are in the car and get them ultrasonically cleaned. Has anyone done this before and is it any good or just another gimmick?
Any help at all is appreciated.