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Drove my A4 to work and had little to no power. P0299 code spit up again with a new turbo and N75 frequency valve. After work went to see some young chaps who work on VW, Porsche and Audi. In 5 minutes he diagnosed my problem. Helps if you tighten down the inlet clamp to the turbo so it doesn't...

Replaced my turbo and the N75 frequency valve. It all sounds like it is working but car seems to have gained no power. Anyone else run into this? I cleared all the codes so it should be back at factory specs.

The turbo on my 2003 A4 1.8L was giving low turbo pressure code. Bought a new turbo. The old turbo's vacuum line ran to what appears to be a switch then off to the turbo actuator. The new one bypasses that and goes straight from the turbo to the actuator. My question if anyone could help, do I...