Engine code help

Can anyone tell me what these codes are for 1996 Grand Caravan?

I did the key dance and it gave me 12, 54, 32 and 52. Thanks for any replies and to tempfixit for telling me about the key dance!!!! This has a 3.3 V6 and does anyone know the correction factors. Maybe 54 Camshaft position sensor 52 maybe O2 sensor and 32 EGR valve?

Here are the explanation from Haynes book:
12 - Battery was disconnected within the last 50 Key-on cycles
54 - No camshaft signal detected during engine cranking
32 - An open or shorted condition detected in the EGR transducer solenoid circuit
52 - A rich air/fuel mixture has been indicated by an abnormally lean correction factor.

I have no fixes for these. I am also looking for fixes on 31. Good luck

Hey thanks for the help maybe someone else can help with the fix!

A MIL code 54 equates to a scanner code P0340: http://www.obd-codes.com/p0340

A MIL code 52 = P0172: http://www.obd-codes.com/p0172 They talk about a MAF sensor. You have a MAP sensor. Does the same thing in a slightly different way.

A MIL code 32 = P0403 Just need to troubleshoot the EGR soleniod circuit. The solenoid is controlled by the Powertrain Control Module (PCM). It's most likely the solenoid but check the wiring and connections at the solenoid and PCM to make sure.

>>>>>>> No need to start a second thread on the same problem (engine dies)>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>