I'm trying to gather any information on low charge pressure errors on a 2004 cx840. It will usually happen when engaging the separator, sometimes instead of a charge error I get a no thresher rpm error. Occasionally it will happen while driving. Either way it shutsdown and takes a minute to restart. Seems to have good charge system pressure, so I'm thinking it may be electrical, like maybe a dump valve solenoid..... Anybody got ideas/experience? Thanks in advance...I'll let you know if I find anything.