Hello there, I am having some - maybe rare - trouble with my Focus MkII, 1.6 petrol, 2010. Is anyone out there who experienced the same thing who could help? I would be extremely grateful... It all started after 44Tkms, P0133 lambda-slow response code. Lamda replaced. After another 22Tkms again. Weird, but lambda replaced for quality of Bosch. After another week, yellow control light again and guess what - P0133. Nevermind, car worked so I just learnt grudgingly to live with it. Then one day at ignition Engine malfunction warning appeared. Restarted and all was okay. Diagnostics has shown throttle as a problem. Then it happened again, but after a while was ok again. When checked, the throttle had been cleaned and seemed ok. Then for a long time a throttle problem wouldn´t show up, but lambda thing was getting worse and really irritating. Then my mechanic tried to switch off both lambdas and the car ran just as jerky as before. So lambdas are just consequence, not a cause. Oxygene shocks were proved, insufficient ignition? Then one day as studdering was getting really bad (still P0133 code) the car has suddenly fallen into emergency regime - the problem - throttle (was it P2135?). No problem on the throttle found, but there seems to be some connection between the two. Out of despair, the mechanic has replaced plugs. Suddenly all troubles disappeared. Unfortunatelly, my happiness lasted only some 500kms then it all started to reappear. HT leads replaced too, no avail. Doesn´t anyone have an experience with that or any clue, please? Could a problem be in ECU? Thank you very much and greetings from Czechia.