ok so heres the problem. If i gradually accelerate from 0 and lets say floor it in 2nd and bring it to redline thru 4th gear im fine. But if im driving for a bit (even if only for 5 or 10 min) and for example am on the highway and downshift to 2nd or 3rd to be around 4000 rpms and then floor it my car cuts out and says engin power reduced. now ive checked the plugs and it just started happening so it cant be the tune. I read somewhere on here about a sensor being loose that isn't really noticeable and that fixed the problem? i dont know, just shooting ideas out there. btw i cant hear any rod knock or anything like that and like i said i cant floor it as long as i dont downshift before hand.

 

when i had eng pwr reduced problem it was my throttlebody.

 

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