Check engine light at high RPM's
 

My check engine light goes on when i hit about 5500 RPM's. I noticed it when i was trying to get my 0-60. It stays on about 5-10 secs. not very long. Any suggestions on what it might be.

Any stored diagnostics codes? http://www.cygnusx1.net/Supra/TechTi...ror_codes.aspx

25,26,31,34 and 52 are the first ones that occur to me given when they're happening.... but it's really just a guess.

I dont know about the codes since its been about a week, and im running about 11psi of boost.

There are a few possibilities... fuel cut at 11psi (is this per the stock gauge?) would indicate a leak in the intake after the turbo or an AFM error; It feels similar to hitting the rev limiter. Check codes first.