Chrysler Repair: 1994 Chrysler Concorde - engine dies, camshaft sensor, crankshaft sensor

Question
Hello,
I have a 94 Chrysler Concorde, 3.3 engine, non-flex.

While driving, the engine will die (seemingly at random).  The CRUISE light will come on, and the car will simply stop.  Sometimes it will quickly restart, sometimes it won't.  If it doesn't, it will usually start with no problem after just sitting for six or eight hours.

I have changed plugs, removed and cleaned the (very dirty!) EGR valve, changed the PCV valve, cleaned and lubed everything I can think of, and changed the fuel, air, and oil filters.

The codes I get from the CHECK ENGINE trick are 12, 33, 11, 55.  The 33 seems to be related to air conditioning, which has been disconnected, so I'm not too worried about that (the car was having the same trouble before I disconnected the AC, so I don't think I messed anything up.)

That leaves the 11.  On the code page here:

http://www.allpar.com/fix/80s-codes.html

I don't quite understand what I'm reading, especially with regard to the Hall Effect and Note #8.

Do you think I need a camshaft sensor, a crankshaft sensor, or a timing belt?  Maybe all?  Maybe something else?  Also, how difficult are those parts to replace?

Answer
Hi David,
Yes, the symptoms and code are consistent with a failing crank sensor. The timing belt, if it failed would totally prevent restart and that hasn't happened yet, but it could be inspected by removing one of the top front covers.
So buy a new crank sensor. It is easy to replace. I will get back later with the details.
Roland

Hi David,
The sensor causes the spark coil to fire the appropriate plugs in synchrony with the engine position. If it ceases to work the computer will also shut down power to the coil and the fuel pump via cutting the authshutdown relay which is the voltage source for those two parts. The sensor is a crystal and ultimately fails electronically, usually when its temperature rises to a critical value, then when it cools it will work again, and finally it fails entirely.
It is located at the seam between the engine and the transmission, mounted in a hole just behind that seam on the passenger side of the engine. It is just above the ribbed top surface of the transaxle dufferetial housing (the part of the transaxle from which the half-shafts are driven).   It has 3 wires (orange, light blue/dark blue, black/light blue). It comes with a paper spacer on the working tip and you mount it with that spacer against the surface of the hidden flexplate and tighten the retention screw while holding it in contact, so that when worn away by rotation of the flexplate
the crystal ends up close but not touching the surface of the flexplate that it is sensing. So press the tip against the surface and tighten its mounting bolt to 8 foot-ponds in that position. The spacer will be worn away quickly but the interface distance will be correct.
Roland
PS Thanks for the kind remarks and nomination.