p0269

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    Q5 Cylinder Contribution / Balance?

    Have a low mileage 2016 Q5 TDI that was running a little rough at idle so I had the intakes taken off and the EGR solenoid replaced. Before the work we just had an EGR temp sensor check engine light on. So had the intake and EGR removed and found tons of black tar built up around all of the...