temp. sensor for motronics

Hello happy new first meal
have the following problem cold motor 3.6er starts super.
after curtzer warm running phase he starts to stutter runs bad and goes when stopping dan from restarted jumps badly and takes only full gas I now put on the plug at the temperature sensor behind under air filter box is the problem as away motor takes on gas and runs well juiced dan but 25 to 30 feet totally overgreased I made a candle totally black I bought the sensor new built exactly the same cold ok warm top genantes problem have exchanged air mass meters warm running controller cleaned and checked I don't know have my old temp sensor times