Possible boost leak

[blakemorgs]

I bought a stage 3 s4 back in November and I can't specifically remember if the guy I bought it from said it should hit 20psi in the summer and 22psi in the winter or 22 summer and 24 winter, it is on Borg Warner ko4s and right now it's hitting right at 20. My question is is there any way, via laptop to check how much boost I should be running on the tune? Pretty noob question but if I do want to figure out if I have a leak. I did clean out my dv's and reset the trims as the previous owner mentioned, tried a boost leak test at a friends house but couldn't hear anything because the fitting was leaking air as well. Any help is appreciated, thank you!

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[Corradovolksb]

If you have VCDS check measured value block 115 during a 3rd gear pull. Your actual boost should be meeting your requested boost. It will be in Mbar so you will need to take that value and subtract ambient pressure that should be around 950mbar depending on elevation and that will give you your actual boost in mbar. You can use a converter tool to figure out psi from there