1jz breaks up a 4k
i got a problem with my 1jz at around 4k it just sputters and breaks up right when it goes to built boost
heres what i have done so far
new coil packs
new spark plugs
new coil pack connectors
replace one of the two cam sensor pins that were no good
when car is cold will start up and rev out and build boost but once it warms up it wont go past 4-4500 rpm even if i down shift while driving will at 4k and just break up
does any body have any suggestions that can help me out it would be greatly appreciated thank you
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