I got a new accufab afpr from racetronix and installed it but it wouldn't go past 20 psi and that's with the adjustment all the way screwed in as far as it would go.....so I took one I had on my syclone and took it off and tested it and it works fine without a problem...so I know it's the new accufab not working.....and reading now I here there garbage units from the start....any mods that fixes them?