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Home >> Audi >> 2016 >> S4 Premium Plus, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 2 (1.8L - Turbo Engine Mechanical, Engine Code(S): AMB) >> 21 - Turbocharger, G-Charger >> Charge pressure leak test with VAG1687 >> Recirculating valve for turbocharger N249 , checking >> Checking power supply

Checking power supply

WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, and 2003 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • The recirculating valve is supplied with power via the fuel pump relay.
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