Car hitting a wall in power band after 5500rpms

[Turbo Habanero]

So like it says car picks up strong until 5500 and its almost as if im hitting redline but no limiter. it honestly wouldnt climb to 6500 if i held the gas down for 3-5 more seconds i think.

Mods - Driftmotion Intercooler/Hks SSQV 3

Intake filter.
Shimmed Wastegate 8psi or more

only thing i know is wrong with the car is a codes 51 and 71 are going off
and when you reach 5500 + rpms the Alternater belt goes crazy and starts wacking around to the point i have to replace the belt once a month cause it gets chewed.

but other then that i am totally lost please help.

 

[OfnaRcR4]

only thing i know is wrong with the car is a codes 52
but other then that i am totally lost please help.

There's you're problem. That and one of your accessory pulley's aren't right. Possibly a bearing failure etc..

 

[Turbo Habanero]

Im sorry its code 51

51 is TPS problems correct?

 

[Turbo Habanero]

so just to be sure i went to check the codes on my car again and it throwing 24-34-51 and 71

Im thinking 24-34 poped up because i shimmed my wastegate and that was the first time ive checked my codes since i have shimmed it.

OK so i think i fixed the 24-34 problem i forget to tighten down accodian hose on both sides ooops... i cleared codes and drove about 20 miles none have come back yet.

i know the 51 and 71 usaully come back after 40-50 miles

 

[metaphysico]

Have a look at the turbo impeller blades, this is what mine was doing a while back and come to find out the blades had chipped on the ends, caused a little bit more lag for the turbo and for it to just run out of power at around 5k or so. It would still give me 10psi. This is probably a long shot but just shooting in the dark here. Could be fuel pump or something like that too, where you are not getting enough fuel ie pump is on its way out. Hmmm lots of things could be wrong. Also is this only in certain gears or in any gear?

 

[Turbo Habanero]

1st and 2nd it will get there just no point might as well shift but 3rd i would have to stay in it a loge time to get past 6k

 

[Nick M]

34 is your problem as described in the title. But you have to fix all the problems. 51 would tell the computer you are not at idle. Ignore it for now. 24 is the intake air temp circuit. That is secondary correction, and won't cause your problem. Come back to it, but fix it after your intake leak is fixed. Maybe that blow off valve you installed is the problem.