When my rst turbo is ticking over it, revs to 2000 then back down to 1000 then bk again and so on. all new gaskets inlets and throttle body.it also hesitates when it gets to 4000 revs but once its through that its ok. Any ideas well apprecaited.

 

i had the exact same problem on my s2, i had a fcuked actuator and my lower boost hose that goes from the induction kit to the turbo was collapsing unser boost so i put a set of samcos on and a new actuator then had it set up and now it runs sweet as a nut! get it inot the tuners mate , its probably the fueling as mine was using 30% more than it shouldve been!

 

can u tell its that by looking and feeling at the hose???? the hesitating seems to be in 5 gear only.

 

if its a stnadard hose it usualy feels really soft, the oil corrodes the insides of the hose! mine wouldnt boost right and hesitated if i put my foot to the floor , to get it to run right i had to ease the accelerator down slowly

 

changed the hose and hesitating still the same but a tuner can sort that out its the ticking over thats the real prob. soon as the cold start stops in up to 2000 then 1000 and so on.

 

did you ever get your idle fixed m8 ?

 

is it fixed?? if not it is prob the idle screw at the end of or throttle cable i had the same prob!