Well, if I'm understanding the operation of the wastegate solenoid,  .... when boost gets so high, the PCM sends pressure through the red line to the waste gate solenoid pushing on the backside of the spring...which allows the wastegate to open. Taking the red line off makes the wastegate open just by drive pressure, without assistance of the PCM. Thats what I worked out in my head from a little reading and looking at the system. So someone please correct me if I'm wrong.
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01 F350 7.3 4x4 CC SRW/3.73/315-75-16/Aeroforce Interceptor/BD Thruster II/ Bellowed Up-Pipes/4" turbo back exhaust/CCV Mod/DIY 6637/FPR Shimmed to 65 PSI/TS chip reburned with PHP tunes (Stock, 40T WITH Whsiper tune, 80DD, 100R, 140Ex, 140SS)/Replaced and Cleaned EBPS & Tube 4-6-12/Zoodad mod/Recon smoked cab lights/MM Hubs/Cowl Hood/HPx
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