REFLECTOR: Dynon fuel pressure

[John Dibble]

I'm planning to relocate my oil VDO sensor to the engine where it's 
supposed to be and was also concerned about vibration.  What are you 
using for your connection?

My 2 terminal VDO fuel pressure sensor also exhibits strange readings.  
When I start the engine it always reads correct at 7 psig (carburetor).  
Then after 30 minutes or so, it often runs 11-15 and sometimes up to 25 
psig.  The readings are not very stable, so I don't believe them.  I 
think the wires may be bad.

John

On 4/2/2012 9:52 PM, Brian Michalk wrote:
> Yes, VDO makes I thought all of their sensors in ungrounded and 
> grounded versions.  I have a few of them on the plane for oil pressure 
> and fuel pressure, which for me is 45PSI.
>
> None of mine are hard mounted to the engine.  I've heard that the 
> vibration can cause them to fail at the neck.  The orifice is a few 
> thousandths in diameter, really small, so if it does break off it 
> won't flow very much.