Hello guys, been having an issue in my 2004 de fbo. Ever since i got an engine rebuilt ive been having an issue regarding power on low rpm. It ran smoothly the first week after the built then suddenly a loss of power and a service engine light. On rpms reaching 4k and above the car is perfect . I put it on a scanner and a vvt code showed up, replaced the selinoid, and no results, took the frame off and found out that a seal inside the vvt was broken and resulted in a loss of oil preasure.... long story short it was fixed and perfectly running, 2 days later the same issue and same code. Can anyone help find out what the problem is or what is causing this problem ? Can a wrong camshaft degree cause this issue ? Im running on bc stage 2 camshafts.. would appriciate the help thanks in advance.