Hello first of all, I wanted to ask you for the following advice and questions if you can help me further. It is about a Ford Streetka Bj. 2005 1.6l friend of mine arrived with the problem engine control lamp and meant she was at Ford and had the error memory read out and there was included Lambda probe defective (error code P0030) Then I ordered one via ebay with plug and installed. I also changed spark plugs, oil and air filter. I then drove about 100km and then found it, he didn’t pick up any more gas and arrived just like that from the spot. Then I pulled off the Lambda probe and it ran normal again. Without Lambda probe I could drive again quite normally without any problems. I immediately drove home and wrote the guy at ebay and he then sent me a new one again. Did they then install nevertheless the same problem was again bin 100km and then he ran too fat again (error code P0172). I checked the exhaust right away if it pulls false air but not the case! My question is it the shit NoName Lambdasonden (because seller sent me money back without hesitation and I could keep the probes) or is there another problem? thank mfg R.Kley