"High" fuel pressure alerts
I'm a few flights into my SlingTsi build and am working on the squawks. I had some high fuel pressure alerts coming up on my taxi testing which were mostly related to my levels set a bit lower than what the POH indicated. I now have my low/high fuel pressure alerts being 40.6 on the low end and 46.5 on the high end set.
The past couple of flights I've had a few blips of high fuel pressure alerts and even one low alert. When the low pressure came up I flipped on the backup pump for the remainder of the flight which I was only about 5 minutes out from the airport.
On the ground I was doing some testing in trying to find some common issue. Today the temp was 70° at the time of the test and I had a high of 47.4 psi. It never went into the low territory, but was frequently in the green range.
During the testing it wasn't uncommon for the readings to jump to 46.6. This was when using either the right or left tank and presented itself if the engine was at 2,200 RPM or 4,000 rpm.
In talking to the avionics shop they suggested we need to make sure the fuel pressure is actually reading correctly with a secondary fuel pressure reader. The only measurement tool I have found requires an active reading while it's running because there's no limit that the needle would effectively push up to for it to give me an idea of how high the readings go. I'm not real keen on running an airplane with someone (me or anyone else) standing near the prop. I like the idea, but I don't have a good solution to accurately measure the fuel pressure from a secondary device.
This didn't seem to be a big problem when I initially started up but it seems to be happening pretty frequently.
Are there any suggestions out there on how to work on/address this issue?
