Middle plugs not firing after timing belt replacement

Hi. I have a 2000 Caravan 2.4 L. The timing belt went on me going about 30 mph. I have had the timing belt fixed but the mechanic says that plugs 2 and 3 are not firing and thinks that the coils are bad. Is it possible timing is off by 180 degrees? It seems odd that the coils would go bad when the timing belt did.

I would think the plugs should fire no matter what the timing is at. It's easy enough to check the coil before replacing it. Here's how:
http://www.autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823d/80/1a/3a/74/0900823d801a3a74.jsp I would call the dealer and confirm the resistances for a coil on a 2000. I'm betting they are the same as for a 1999. You can always tell him you're not paying for a new coil if the coil does not fix it.

also have them check the compression may have bent valves now

Thanks for your suggestions.

We got a new coil and still nothing. The car starts but those 2 cylinders dont fire. The compression seems fine, 150, I think was the number. Is it possible we have a computer problem? One of the error codes that came up was bad cam sensor. But I dont know what that is. The mechanic doesn't know anything else to try and we might have to take it to a dealer.

Thanks again for any ideas or suggestions

Here's an explanation of how your ignition system works: http://www.autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823d/80/1a/3b/d0/0900823d801a3bd0.jsp

This tells you about your camshaft position sensor ("cam sensor"): http://www.autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823d/80/1a/40/69/0900823d801a4069.jsp

If thats all Greek to you - the Powertrain Control Module (PCM) is the brain. The PCM receives signals from various sensors including the camshaft position sensor. The PCM then determines the engine timing based on the data the sensors are supplying. The "timing" in engine timing is the precise moment the PCM sends voltage to each of the coils on the coil pack which, in turn, fires the spark plug or is supposed to anyway.

Since you have already changed the coil and you still have the problem, the PCM or wiring from the PCM to the coil are the targets now.
You are getting a fail code for a camshaft position sensor (CPS) and am assuming it's 54 or PO340. If that's the case the first step is to make sure the wiring and connections to the CPS are good then change the CPS. Make sure it's a Chrysler sensor and not an Autozone or PepBoys sensor. I don't quite understand how that can kill spark to just two coils but, first things first. Maybe 1thunder can jump on this and clarify.

I am assuming the mechanic eliminated spark plugs and plug wires as the problem.

The CPS is near the timing belt and covers. Could the mechanic have disconnected the CPS or damaged it while changing the timing belt?

sorry it took so long to reply was busy on different things but RIP you are correct in your diagnostics if you check wiring from coil to pcm and use a dealer part something should show up but the comp at 150 isn't too good did you check all the cylinders normally i see these engines up around 180