2000 d2 98k miles, I have a donor vehicle so figured I would give it a proper tune up with the newer coil packs, magnecor wires, and copper plugs. Chasing a p0306 that wouldn't go away and now I have p0306 p0304 p0307 p0300 p0332 and the 1590 that has always been there. Any suggestions? It seems like the matinence never ends! Also noticed oil in throttle body and almost making its way to MAF when I removed upper intake. It idles rough and drives like a 4 cylinder