Equinox REDUCED POWER...GDI Low Fuel Pressure? (Parts Cannon FAIL)

This poor 2015 Chevy Equinox has been at the shop for almost a MONTH having the parts cannon shot at it for a hard start, low fuel pressure, low power, rich condition... Aftermarket Parts Cannon: {High Pressure Fuel Pump, Fuel Rail Pressure sensor, spark plugs, MAF, Catalytic Converter!} Car doesn t run any differently and sets DTC: P00C6-00 Fuel Rail Pressure Low During Engine Cranking MEGA DEAL... THINKTOOL PROS: ******TOTAL $270 OFF!!**** https://www.amazon.com/dp/B08SWH2KP4?linkCode=ssc&tag=onamzpineholl-20&creativeASIN=B08SWH2KP4&asc_item-id=amzn1.ideas.NHZL00NIDEPF&ref_=aip_sf_list_spv_ons_mixed_d_asin Here we go...place your bets now! Ivan