Hi, My wife's Renault 19 has a strange problem. It feels weak and sounds like only 3 cylinders are firing, though all 4 is firing. Compressiontest all cylinders 10kG, ignition-system replaced like plugs, distri.cap, rotor, cables are checked. Air-filter, fuel-filter replaced, oil and filter replaced. No water in oil. What can be wrong with it?
Regards ST