Boost Issues.... Please help!

[A3-Steff]

I have been having boost issues on my 1.8t but it only seems to do it when going on a long journey or up the motorway? I will be driving along and put my foot down and can feel the boost kicking in, but then say a few miles down the road I will put my foot down and then No boost at all...??!! The car hardly accelerates at all and feels very sluggish until maybe a few more miles down the road and then it kicks back in again :/ it never does it from cold or around town driving and it's driving me mad! I was over taken by a silly little saxo vtr full of chavs all laughing as they went passed me as I had no boost at the time.. not good times! Someone please help...!!

 

[<tuffty/>]

year/model?

Fault codes?

<tuffty/>

 

[s3black]

My dv was sticking when hot and sometimes gave a hesitated boost but you could tell as it was more of a juddery hesitation. May help.

 

[Nilz]

Do you have any fault codes, have you done a scan on the car??

What year and model is the car?

Some more info needed please........

 

[A3-Steff]

Do you have any fault codes, have you done a scan on the car??

What year and model is the car?

Some more info needed please........

It's a 1998 on an S Reg
1.8 turbo
Have had it scanned and nothing comes up with anything

 

[A3-Steff]

year/model?

Fault codes?

<tuffty/>

1998 on S Reg
1.8 turbo
Has had stage 1 remap and that's it..