Turbo - Loss Of Power. A4 Tdi 130

[R1ZZY]

Hi
i have a A4 2002 tdi , the car has loss power it wont go over 80 mph and it struggles going up hills or when gears are changed. I changed the air mass meter. i also changed the turbo and a sensor 038906051c which sits near the top of the engine. I have done a diagnostic as well and it shows no problems. The car is still the same it wont pick speed up as usaul, can any one please advice me what other things i can look at to solve the problem or links on the net that might help its been four month and it same problem any ideas or tips please post and let us know.
ThankZ

[farmer]

Check out http://www.tdiclub.com/. I had a 130tdi golf. I had problems with it going into safe mode when planting it up hills. A fault code was logged as overboost. Turned out to be the turbo actuator. If you have changed this it could be something as simple as a vacuum pipe split.
Fred's tdi forum has all the info you would ever need on the vag tdi. I'm sure someone on there will sort you out

[n793]

Hi
i have a A4 2002 tdi , the car has loss power it wont go over 80 mph and it struggles going up hills or when gears are changed. I changed the air mass meter. i also changed the turbo and a sensor 038906051c which sits near the top of the engine. I have done a diagnostic as well and it shows no problems. The car is still the same it wont pick speed up as usaul, can any one please advice me what other things i can look at to solve the problem or links on the net that might help its been four month and it same problem any ideas or tips please post and let us know.
ThankZ

i have vw bora 1.9 tdi 150bhp 2003 , and i have the exact problem as you , got the car read and came up as a sensor 038906051c changed it no difference and wont go over 80mph at 3000 revs , have you found your problem ? any ideas solutions ? thanks

[jshodgson]

I'm suffering with the same in my A4 tdi. I cleaned all of the crap out from the inlet manifold and EGR valve and that seems to have helped a bit but definately hasn't cured it. I am reluctant to start changing the MAF and other parts as I read that lots of people try this and it doesn't cure it.