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I am planning to buy JPI EDM 930. Any recommendations on that? Have a question regarding fuel senders: do I need to replace them? Does anyone have problems with EDM 930 fuel quantity reading? Thank you

I've been chasing an intermittent problem with my JPI EDM-930 in my "E" model lately. It cropped up a few weeks ago coming home from a long trip, and has progressively gotten worse since then. Details: The AMPS meter would be fine at 2 amps nominal during cruise, then all of a sudden aggressively spike up and down. This eventually became a steady high charge rate of 120 amps, well exceeding the alternator capability, resulting in e RED X over the AMPS gauge. The VOLTS gauge would remain at 13.7 nominal during the entire event. The other indications, such as EGT & CHT would be very erratic when this was happening. Turbulence would aggravate the problem, so clearly a loose connection was at work here. I could make the problem go away by pressing on the bottom right hand screw holding the JPI in place. Yes, this took a while to nail down, but suffice to say, I could make the problem go away by pressing the screw, and as soon as I let go, the problem returned. Replicated quite a few times. Upon removal of the JPI to look for a poor ground or some other loose connection, we heard a washer flopping around inside the JPI. Well, the washer was from one of the posts that the connectors screw into, but after opening the JPI back panel, we saw this grounding strap going to a power SCR/transistor that had broken. Problem solved. If anyone happens to have a similar problem, this is a good place to start. Easily fixed. JPI notified - wonder if they will respond?