I have spent the best part of a year messing around with my EAS, and have just about rebuilt the system in its entirety. However I have a puzzling dilemma now. My rear end (don't laugh please, my wife has made all the jokes before...) dances up and down constantly. It changes height by about 4cm. constantly. There does not appear to be any external leaks around the air bags(new) or the valve block. Consequently my compressor is running nearly all the time with about 7 seconds between on-off cycles. You can hear the exhaust valve clicking open to lower the rear when it gets too high,then the compressor starts again and round and round we go. I recently found a thread pertaining to NRV leaks but it only mentions the front end dancing. If I open a door to cancel the self leveling, the rear continues to raise and the compressor builds system pressure to 150psi and shuts off like it's supposed to. Once you close the door it lowers and the whole process resumes. The thread alluded to leaky NRVs. But only on the front air springs. I have checked ohm values on the RHS and they range from 2.5 to 1.5 ohms throughout the range of motion. There is not any problem with voltage on the sensors either. They are new and calibrated, new air lines from tank to compressor. If i bypass the system and use my emergency inflator, it will stay up for several weeks without needing to top up the air so no leaks in the lines or springs. Also self leveling whie parked for a week at a time does not kill batter so I figure my air system is tight. I just can't get it to stop dancing and running the compressor too often.