The control module provides a 5V reference voltage to the pressure sensor and monitors the return signal voltage from the sensor.
As I said so it doesn’t go back to earth, problem is which side is reference and which is return? Which side would diagnostics read? The pressure side which to me is the return signal?
saved file for reading in the am
J
Edit sorry last post crossed will take a look with interest.
Was bugging me as it was going over and over in my head , hope that makes more sense and indeed think ur right u know ref the Vdc
will be great to then see via diagnostics what the Vdc reads
Hi Brian, yes tried both directions, its the same as a ducato fuel filter quickfit, and that pushes away from the pipe and it releases, maybe this is just so stuck! i managed to unscrew the metal pipe out of the pump body so will address at a later stage,Have you tried pushing it in towards the compressor then whilst still pushing pull the gray bit towards the elbow and pulling the whole thing off, if that makes sense.
Edit the excess photo's out.sorry guys, i think i over sent the pictures? so confusing uploading here?
Ive put the old back in it just for the test, it was still solid and most of the "caked" area was in the pump head end of the filter (which i thought was strange) but it did look like errosion more than powdered desiccant so maybe id had a water leak on the pump maybe, i did have to do some wading in the Dorset floods thge other month?? but yes i agree with you and have ordered a service kit for the air drier filter.Good work
Think the whooshing is just the venting of the pressure at the compressor once the system is up to pressure and compressor shuts off.
Hope it’s still up in the morning for you
have you actually got any desiccant in it? If so not sure it would be a good idea to run it long like that as you could get moisture in the system
J
ah ok, yes that would make sense.If exhausts back through the drier if I remember right, something to do with it removes the moisture.
J