help, car with gt2871r wont boost over .75 bar

[D1 guy]

This just started tonight. I have a gt2871r on my s14 motor. It is controlled by a greddy e01 boost controller. For some reason, It will boost up to .75 really fast and hold it there, but wont go over it. I have it set for 1.0 bar in auto mode and it only boosts to .75 exactly. Itll hold that all the way to red line. The turbo is the .86 one. It should be good up to 1.5 bar at least. Does anyone know what the problem could be? If so, please help me out. BTW, the first time I turned on the boost controller I programmed the low setting to .75 and it did that perfect. When I changed it to 1.0 (low) and high to 1.25 the problem occured. It pulls hard and holds excellent. I just cant get it over .75. I also have a jwt ecu, z32 mafs, and 555cc injectors. Please help and Thanks in advance.

[D1 guy]

cmon someones gotta have some advise. please help

[S14-NEO]

sounds to me like the boost soleniod might be jacked up. i have heard people having problems with those, if in fact its the small version of the boost solenoid ...kinda like the same size as the apexi one.