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VW TDI P0299 Turbo Underboost Code

Diagnostic code P0299 stored on a VW TDI first thing I check are these vacuum lines. These are some of the common vacuum areas that are bad, it is important to check all the braided lines including the one leading to turbo and the N75 valve. Sometimes just a visual inspection of these lines can be misleading as the slit maybe very small, best practice is top use a vacuum gauge. -If you have P0299…