[gomezmk]

I have a 87 turbo supra with full 3 inch exhaust 12 psi of boost, adjustable fuel regulator. Every time I run my engine up to 5,000 rpm, it starts acting like a rev limiter but no check engine light is on, is that my fuel cut. The only sensor I don't have on my car is a turbo boost sensor, I thought it was only used for the cluster boost gauge. It also did it at 9 psi so I have no clue what it is. The only code I got is a boost pressure signal, it don't sound like I have boost leak.