R26 losing power

Hi as title iv had this problem for a little while, it started a few months ago when i went for a group buy remap at TDF, my initial run on the rollers as standard read 197bhp which obviously is well down. TDF put the stage 1 map on and the result read 225bhp so about the right gain expected. Booked car in with to have a look at the following week,was told it was the boost control valve and that it had been replaced. Sadly they didnt have time to rolling road it after this work had been carried out and i thought nothing of it.

So a couple ago i had a miltek fitted at my mates garage Jabbasport which is local to me, i asked him to rolling road it for me while it was there and over two runs made 196bhp and 205bhp.......help please as im slowly giving up with the meg.The car has standard airbox with air box mod and panel filter. Also i have fitted a forge recirc valve with yellow spring which was bought secondhand from a friend of mine who had it fitted 6 months. Lastly a cat back miltek. Always serviced and belts replaced last year.

 

Was told by TDF that boost levels were correct. No its not misfiring, slowly losing patients with it.

 

TDF changed belts so (should) be correct right? Easy way for my vag friend to check timing?

 

Ok mate, iv already decided they wont be getting anymore custom from me. Just seems a bit of a coincidence that they didnt have time to rr it after supposedly fixing the proble, hope im wrong about that though. I will get mate to check timing.

 

*problem

 

Is it worth me taking off forge recirc and changing to standard to eliminate that as my friend suggested,he said he would rr once changed and go from there.

 

Cheers lads for replies, I will get it leak tested.

 

Thanks MicKPM, my mate is really quite good. Would trust him to find out the problem even though they are a VAG specialists. Other than them im really struggling to find a reputable garage i can trust to tell me the truth. If they struggle though i will have to look further out, how busy are you at the minute? haha

 

Hello mate, im in peterborough,Cambridgeshire area, my car is at my mates vag specialist garage tomorrow so il ask him to check injectors. My car is on a 07 and just clicked 40k with them not being changed to my knowledge, good shout. Hopefully he gets to the bottom of it.

 

Hello mate, just realised i replied to the wrong person.Like i said im based in peterborough,Cambs but dont mind travelling if my friend is unable to find problem.

 

Will def keep you in mind as this problem is really starting to irritate me now. Haha

 

Just a quick update, my mates garage swapped the forge recirc valve for standard an power went up from 205 to 219 and gained quite a bit more torque (242) but obviously still well down on what stage 1 should be.He says there is def no boost leak turbo seems fine,hes checking timing tomorrow but think hes running out of ideas as french stuff isnt usually his thing. Think i might have to travel further a field.

 

Idle isn't too bad really and mpg has never been brilliant,I will say this to the garage where my car is. Thanks mate.

 

Another update, so my mate has flow tested injectors,checked compression,checked timing but i got a phone call today saying he thinks hes found it. He noticed the knock sensor was completely broken so hes ordered another one and is going to fit that monday. He was saying that this could cause the power loss which does make sense.Anyones thoughts?

 

Well just got car back this evening, it was a mixture of forge recirc valve leaking and the knock sensor. Car made 239.5 bhp and 270 torque from from original 197hp and under 230 torque. Still not what stage 1 figures should be but dont care, car feels so much better and alot smoother. In time will decat and get a tweak but for now me and the girlfriend are moving into our second house in a couple of weeks so thats the priority. Haha

 

Hello mate, yea someone else said it could be a failing cat, thats my next step to decat and get a rs tuning map tweak.

 

Ok mate, now you have worried me. Whats the converter? Might need to invest in a decat sooner rather than later then.

 

Of course, just me being half asleep.Sorry lads. Haha