Please help!!! My daughter called me and said her car broke down. Trailered it home because I thought it had jumped timing. DTC codes that pulled up were P0014,P0301, P0304, P0011, P0303, and P0420. Upon inspection both CVVT Oil Control valves screens where pretty stopped up. Cleaned, checked coil resistance which is in specs, and replaced the existing ones. Checked spark plugs and on one cylinder the plug was melted, changed all 4 plugs, crunk the car and nothing changed. Checked all coil packs by sticking a plug in it and grounding it out and every one fires. On a hunch I pulled the wires off the coil pack of the cylinder that had melted the plug, no change in engine rough idle. Pulled wire off a different coil pack and drastic change in idle, almost shut off before I could plug it back up. The cylinder that had the melted plug is getting fuel , but upon further inspection one of the two intake valves on that cylinder is white where every other intake valve in the head is black and covered with deposits. Could it be a burnt valve? Or could the timing have jumped? Any ideas???