Hello all! Have been lurking on the forums for a bit and recently picked up an 05 1078. So far has been a great truck and limited issues. However since I bought it I have had one issue I cannot seem to sort out. Whenever the CTIS ECU is plugged in I loose oil pressure on the dash and sometimes get a charge fault. I thought maybe it was a ground or batter issue, but that does not seem to be the case. Anyone with an idea on what might be causing this?