Last monday I had a trip and when I turn on my Rotax 912 the battery it was discharged. Put another one in parallel and turn on the engine, but all the parameters like CHT, fuel pressure, EGT it's oscillating a lot. The pointer of Oil Pressure it's so oscillating that cause alarm of "High Pressure" all the time. Today I put a new battery and... nothing! What's happening, somebody can help me? :-[