I feel that I've tried everything and I probably just missed something little but I am stumped and don't have the time to keep chasing this issue . This is on a 08 Trailblazer SS with 60 lb injectors and a sts turbo kit . at 45-50% throttle it will make 5 psi under 2000 rpms and the AFR stays right at 14.7 , to me I don't care and I can just drive the truck a little differently so this doesn't happen , but my wife also drives it too so I have to make it safe at part throttle . But it is driving me crazy that I can not make it work correctly . I need it to go into PE or Open Loop when it sees 103 kpa so the afr richens up and the short term fuel trims stop trying to correct to 14.7 part throttle cruising . Thanks in advance for the help!