FSX-MS Wrong Airspeed readings on PFD

[9Y_iamdre 1]

Hi all, so the issue is very difficult to explain maybe if y'all see it y'all me have a better idea so I going to try my best to have it written well.

So I have been flying with PMDG 737NGX for FSX and all my airspeed reading where correct cruising at .79 which is roughly around 484kts... I recently installed the Aerosoft Airbus a319-21 first couple of flights have been successful but as of recently it's all messed up, when cruising with both aerosoft and pmdg + other freeware airplanes my plane would try to cruise at a slow speed so on the autopilot panel it will say .80 Mach speed but on the pfd I'm am literally slowing down and going .45 which is very odd and sometimes disconnecting the auto throttle helps no little so I am very sure it may be the Airbus but at the same could be something else.

 

So far I'm yet to find the issue but I am going to attempt deleting the FSX folder in %appdata%/roaming/Microsoft/fsx and see if that works .

If anyone has any other suggestions or why this is happening please leave something below this would be very great full.

 

Thanks in advance.

Also I'll post some pictures later to show what I mean 

 

[Luis Hernandez 564]

Check in FSX settings that your airspeed is set as Indicated, instead of True.

[9Y_iamdre 1]

Yeahhh it's set to Indicated that the weird thing about it.... Definitely ain't my weather addons cause it was fine before that, I use FSrealWX and AS2016.

[Bob Scott 7,710]

An indicated airspeed of 484 knots at M 0.79 cruise is definitely not right--should be in the mid to high 200s.  That would be a reasonable groundspeed at M0.79 with ~20-30 knots of tailwind.

Check the OAT and make sure that your weather program hasn't injected a gross error, e.g. surface temps applied at cruise levels--that will cause a huge issue with indicated mach.

[9Y_iamdre 1]

Exactly!!!. Ok so I will check the weather engine and report back tonight to see if that's the issue I have some other things in mind that I would check also. 

[9Y_iamdre 1]

Alright folks, Scott I tried what you said and also changed my weather to be loaded directly from simconnect instead of FSUIPC and that did the job NGX not sure for airbus but ill try that one later but for now lease it working fine on the NGX. thank guys.

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