Alright my friend has bought a Zenki 240sx and it has a full S15 SR20 with 6-spd tranny etc etc, Greddy Turbo Timer, Apexi SAFC, Greddy boost gauge, and Greddy PROFEC B-SPEC 2 Boost controller. The turbo is stock as is the wastegate and manifold. Ok we think we got everything set right but, when he puts it to high boost (set at 18/39) (Low is 2/10) (he wants 11 pounds on his high if we made a mistake in # help please

) it goes only to 1 bar and then shoots right back down to 2 marks over 0.5 bars and stays there. We messed with the gain and it controlled it for the most part with the gain set very low but it still was going to only 2 marks above 0.5 bars. Please any input is good i appreceate it thank you
