Hello,

when I start my Impreza turbo from 1996 an the engine is cold it starts well. Sometimes when trying to drive it judders but not often. After 50meters there comes a 90degree righthand bend which i drive very slow in the second gear. In 75% of the cases the car judders very hard and it's just befor going off. When then giving 3/4 throttel its ok again. On the complete remaining driving.way there are no more problems and everythingdrives very very well. So its only short after starting when its cold.

I've no idea. Only things I've detected was one time with full throttel at about 5500rpm it swallowed exactly one time. Directy afterwards I tested again over 5500rpm.and everything was OK again.
Other thing is that my rev meter shows me alway over 1500rpm never below this. Everything above is correct shown. But the car runs definitely with correct idle speed rpm it seems that only the pointer stucks. Till today.that was no problem for.me.because the engine runs with the correct rpm and above 1500rpm the rev meter shows the correct rpm.

I hope you can help me.

Kind regards
Matt

 

Maybe a faulty coolant temperature sensor? That would cause it to run as if the choke was on all the time.