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I have an HKS EVC III on my R-33 GT-R and I would like to up the boost slightly. I finally managed to track down some english language instructions on the HKS USA site and have followed them to the letter to adjust the high, low offset and scramble mode boost settings however I cant get the boost to go above 0.9 bar even in scramble mode set to 1.2 bar. The boost holds steady at 0.9 througout the rev range in all gears and I have tried adjusting the settings way above what I actually want to run but it makes no difference. The unit itself seems to be working as when I switch it off the boost stays at 0.7 bar. Any suggestions?
 
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