f14av8r
Well Known Member
I'm posting this to alert any other Dynon customers that may be experiencing the same fuel pressure problems I've been dealing with for a few months. This is, in no way, intended as a criticism of Dynon. I'm merely trying to raise awareness of this issue.
I had unreliable fuel pressure. I replaced the legacy Dynon fuel pressure sensor with a Kavlico 0-15 PSI sensor that I bought from ACS in August of 2015. My fuel pressure indications were better but I still had issues. I'll save you the details but, the big reveal is in why they were unreliable.
It turns out the 0-15 PSI sensor that I received from ACS was actually a 0-150 PSI sensor. I didn't discover this until I sent the numbers stamped on the sensor to Dynon tech support. So, all my reliability issues were actually due to the fact I was trying to operate the sensor in the lower 10% of it's range. Obviously not good. Dynon tells me that they had a packaging problem with some of these sensors and sent out some 0-150 sensors in 0-15 packaging. So, it wasn't Spruce's fault, they thought they were delivering the 0-15 sensor I ordered but I actually got a 0-150 sensor.
The bottom line here is that you should check the numbers inscribed on your fuel pressure sensor to ensure you have the right sensor installed. For a carbureated engine like mine, you need the 0-15 sensor. You can find all the numbers on the Dynon website but, if you have any questions, give Dynon tech support a call with the numbers off the sensor in hand.
To their great credit, when this issue revealed itself, Dynon was happy to send me a new 0-15 sensor for free.
Thanks again Dynon for the great customer service!
I had unreliable fuel pressure. I replaced the legacy Dynon fuel pressure sensor with a Kavlico 0-15 PSI sensor that I bought from ACS in August of 2015. My fuel pressure indications were better but I still had issues. I'll save you the details but, the big reveal is in why they were unreliable.
It turns out the 0-15 PSI sensor that I received from ACS was actually a 0-150 PSI sensor. I didn't discover this until I sent the numbers stamped on the sensor to Dynon tech support. So, all my reliability issues were actually due to the fact I was trying to operate the sensor in the lower 10% of it's range. Obviously not good. Dynon tells me that they had a packaging problem with some of these sensors and sent out some 0-150 sensors in 0-15 packaging. So, it wasn't Spruce's fault, they thought they were delivering the 0-15 sensor I ordered but I actually got a 0-150 sensor.
The bottom line here is that you should check the numbers inscribed on your fuel pressure sensor to ensure you have the right sensor installed. For a carbureated engine like mine, you need the 0-15 sensor. You can find all the numbers on the Dynon website but, if you have any questions, give Dynon tech support a call with the numbers off the sensor in hand.
To their great credit, when this issue revealed itself, Dynon was happy to send me a new 0-15 sensor for free.
Thanks again Dynon for the great customer service!