In my experience junkyard distributors are a real gamble. 90% of the time they are bad due to sitting gas and mileage on the vehicle.

Start with the OVP and report back...You have to get a baseline done first. Once that is replaced, then start with a basic tune up. Plugs/Wires/Rotor/Cap.

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k