Growth and two small problems!

Hello ! Since my 94-iger turbo is in the hall for the first time (wheelhouse and spring leg dome back right completely through was no longer to be created to the TÜV , at the time) I have placed a MY 6.93 with 107 kw as transition to. The car is naturally great (carroserie, disc frame engine everything good 280 Tsd. on the clock) . Only one bothers, who I want to start in the morning he starts up and goes out immediately, I start with gas giving it starts and after about 20 seconds I can walk from the gas pedal and it runs ?! And my speed is in the warm condition too high, 1200 tours. Once he showed check engine 4 times blinking, Temp. sensor, can the for both be responsible? Have the battery stuck now remains check engine out but that behaves not changed! Temp. Feeler comes in Sunday the new one. Does anyone have a mutant behind it?