Can someone assist with the following please?

Hi,
I have a chrysler pacifica 2005 3.5. 4 months ago, I received 2 error codes P2305 ( Ignition Coil B Secondary Circuit) and P0302 ( Cylinder#2 misfire detected), so I changed the Coil and the car was running ok for a limited time but the RPM indicator on the right of the dashboard shows an unstability (up and down) and the sound of the engine was not stable.

Now, I have the following errors and the car does not turn on at all. Please advise and thank you.

Marc.

I have the following codes errors taken out from a scanner last week:

P0129 : Barometric Pressure Too Low

P0403 : EXhaust Gaz Recirculation Control Circuit

P0340 : Camshaft Position Sensor A Circuit Bank 1 or Single Sensor

P0335 : Camshaft Position Sensor A Crcuit

 

Does it spin over any different then normal sound wise?

 

Thanks Kevin,
The engine sound after been unstable for like 10 minutes may turn back stable and normal for a little wile and then became unstable again.
FYI/ 2 weeks ago I stopped in a trafic Red light and the engine turns off and I could not turn it on again. it looks like the battery was dead and I had to tow the car and the day after, I tried to turn on the engine and the car turns on. Very strange! Thank You .
Marc