Recent content by osko

  1. O

    Audi A6 C7 CNHA - Smoke Issue

    These engines have two EGR valves! Low pressure and high. Low pressure is past the DPF, under turbo.---> Unplug the connector on actuator, and see if the smoke changes to white. If white. The manifold/coolant cooled intercooler :) is blocked. The high pressure EGR is mounted (under throttle...
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