I am having some running issues with my 1986 Dodge 600 2.5L. I checked the fault codes and have come up with codes 11, 12, and 55. Can anyone please tell me what the codes are and possible fixes. Right now the car only runs when it wants to and does not want to start right now. Any suggestions?

 

fault code 11 is loss of power from battery to logic module, could be corroded wiring, dead battery, or pick up coil. fault code 12 is from dead battery or disconnected battery will clear on its own, the fault code 55 is just end of code signal.

Have you checked fuel and spark?