I spoke to 2 different Dynon techs last week. They seemed pretty frustrated with the existing sensor as well. After all, they are the guys who have to deal with our issues. I wonder if part of the problem is cost. There are other sensors on the market that might work better.As an example, Uma makes a 0-7 psi sensor for Rotax applications. Chief sells it for $110. The sensor we use is $35.

If you want to check your sensor, here are the resistance values per Dynon:

psi ohms
0. 11
5. 42.3
10.4. 74.7
15. 101.5
20. 128.5
25. 156.2
30. 186.2
 
Oh those crasy readings!

After you come up with a concept to build some thing you are at the mercy of the market place to come up with the hardware to implement it. There are always compromises involved. Dynon and the different transducers that they use to send info to the EFIS from the Rotax 912 are a perfect example of these compromises. Dynon knows this and they are trying to come up with a better product with out charging a ton of money for it. (Think HoneyWell oil sending unit) IMHO most LSA pilots dont even notice the stuff you guys notice:rolleyes:, which mostly is because you built your plane so you are a lot more attentive to whats going on with your engine. For most if the engine stgarts and runs smoothly away they go.:eek:Now add to the equation the idiocies with the Engine driven fuel pump failures, where the oil pressure sender is located on the engine and how the manifold pressure is read and you can see how things can get somewhat confusing. The RV12 is still a virgin morphing every day into a better plane thanks to you guys who are fixing all those idiocies.:p
 
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