Hi think ive got a problem when accelerating car boosts then goes hesitant then boosts again as if its stuttering slightly and a sudden loss of power could it be a dirty throttle body or the n75 valve any ideas would be great

I don't have any lights appearing so don't really no what's wrong

Anyone

Sounds like a boost surge. So many things can cause it. Give it a search and read the past fixes. There is a lot of good information, tips and tricks on the forum.

Thanks for help think its either n75 or dirty throttle body will clean throttle tomorrow and change n75 hopefully that will cure it do u think its best to stay with this valve N75F

The best way to start solving the problem is to get is scan, not throwing money on random parts that in most cases are not the problem.

I've scanned it with no faults I've just cleaned throttle body and seemed to have solved problem thanks

When he says scan, what he means is doing some power runs and capture some vital stats at the time the car exhibits such behaviour.

Equally, you could possibly work out what is happening by making a mental note of the weather, engine temp, location, driving style.

(define how you accelerate; is the engine cold/hot; any mods?)