Sometimes it drives fine and sometimes the engine will start stalling?

Could the cam shaft sensor cause this to happen?

I took the number four spark plug wire out and it was soaked in oil, other three looked okay.

I dont have access to scanner so I got them by turning the key on and off 3 times in a row and it displays the codes in the odometer, anyway there were 10 codes, I cleaned the oil out of the spark plug tube, and cleaned the cam shaft sensor, the check engine light stopped flashing but is still on, its been dieing while im driving down the road and if I put it im neutral it will start right back up, but if I kill it, turn the key off sometims it takes 20 minutes before it will start and sometims it starts right up, anyway the codes it displays now are
p0016, p0522, p0339, p0340, p0335 and p0038

Car stalls out either warm or cold it runs sometimes starts right up after stalling sometimes I have to wait for long periods of time for car to restart?

Caradiodoc, what -is- that "real simple fix"? I'm in the same boat as "dmiramon".

Thank you in advance.

Some times it drives fine and sometimes it will start stalling and cutting out real hard, but if you let off and slowly ease back into gas it drives normal, here recently it has started dying while driving, sometimes it starts right back up and sometimes it takes ten minutes. The check engine light flashes on and off now instead of staying on constantly. I checked spark plugs and number four spark plug tube had a bunch of oil in it, I am guessing it is from leaking valve cover? The wire and plug seem to be still working fine.

Now remember I have had the van for six months, and it was given to me by an eighty five year old man so I so not when the last time the codes were cleared and it ran great 90% of the time and it would try to stall and jerk real hard occasionally, but if you eased back into gas it was fine. Now it does it just about every time I drive it. Anyway, here are all the codes, there are a bunch of them.
P0016, p0442, p0456, p0440, p0300, p0522, p0344, p0339, p0340, p0335, p0038.

I have no way of clearing the codes, I got those codes by turning key on and off three times in a row and it displays them in the odometer. I live in a small town closest place to go to be able to clear codes is thirty miles away.

I do not have extra money to buy one right now. So I cleaned all that oil out of spark plug tube cleaned connectors on cam shaft sensor and drove around town a little and drove fine. Took a minute for it to start, but check engine line stopped flashing at least.

Engine suddenly quits at any gvien time without notice. Cranks but does not fire just like lacking fuel or ignition. No obc code, new fuel pump, new rebuilt ECU and now new ignition coil. Drove it for 1/2 hr fine, my wife takes it out and quits on her randomly. After it sits for a while it will start right up without a problem and it might drive for a while or quit again.