I have recently had the problem that my VW Fox (BJ 2006, 55hp, 190,000km, petrol) loses power again and again for a short time – there are dropouts for about a second, which then repeat themselves several times in a row. In addition, the engine control light lights up. Since I want to tackle the problem now and would like to screw (even though I am still a newcomer in the car area), I bought a error reader to find out the cause. As a result, I ordered and installed a new pre-catalytic lambda probe (from Bosch). After the replacement, I deleted the error code. However, after about 5 minutes of driving, the indicator light again lit up, and the same error code was displayed again.