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Home >> Audi >> 2017 >> RS 3 >> Repair and Diagnosis >> External Pages >> Different car >> Section 36 (GENERIC SCAN TOOL [CNTA, CNTC, CNSB] (5 Of 5) -- (A3 SEDAN)) >> Generic Scan Tool >> Diagnosis And Testing >> Diagnostic Procedures >> Turbocharger RECIRCULATION Valve - N249-, Checking >> General Description

Turbocharger RECIRCULATION Valve - N249-, Checking: General Description

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The Turbocharger Recirculation Valve -N249- keeps a portion of air flowing through the intake side of the turbocharger when the throttle valve is closed and boost pressure is still present. This keeps the turbocharger impeller from slowing down, reducing turbo lag when the throttle is applied again.

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