i've had my mk1 octavia vrs for a while and had few problems with it which most have sorted.

recently though i find its dumping a lot louder which not bothered about thats good thing but the power has gone i use to never have to change down now i;m finding even at 40mph where the revs are about 3000ish and turbo is spinning i still have to change down to second to get some power then obviously change straight back up. I've tried taking air filter out to not restrict air flow,which that just made it dump louder. i;ve cleaned the dump valve out numous times, i;ve had throttle body pipe of and sprayed brake cleaner down (know u shouldn't) i've sprayed egr cleaner down air intake after air mass meter but its still struggling on acceleration. any one any ideas. Oh also the secondary air intake box thing if i can take it off what have people put there in replacment.

also seen on ebay a n249 n75 bypass thing one do they work and second how you fit it?

sorry also any idea on stopping the back end lifting up so much mine is awful for it front end dips back lifts up on corners.

think thats the main things i have wrong

all idea very welcome as new to this engine

Sounds like the DV is faulty - is it the standard one?

The suspension thing sounds well dodgy - new shocks needed by the sound of it

SAI delete etc - I have guides on my website here:

http://www.pimpmyskoda.co.uk/Engine.htm

There are also other excellent guides in the technical guides section of Briskoda.

As above +1 on DV (if you have a forge item buy a recon kit - theyre about £15/20 - I suggest this as you may need to replace the rubber seals - they've probably went brittle over time as you tend to cook the valve where it is unless you've carried out the cold air relocation mod?)

Robs guide is also brilliant for locating and removing vacuum/boost lines. Follow his link and start removing parts : )

Also are you sure the DV's got louder? As your loosing performance I'd imagine you'd here the boost leaking as the cars under load- this will make the turbo noise sound very loud as the pressure escapes - if this is the case and the DV's fine you may have a boost pipe split somewhere on the system