Help me diagnose this problem: I can't rev past 3500 RPM intermittently (AK370Z)

Originally Posted by XwChriswX

Are you UpRev tuned at all in a way you could drive around and do a Data Log to try and see what happens when this happens?

Originally Posted by AK370Z

No tuned at all. Bone stock. That did came to mind but I rather want dealer to fix it under warranty as plan A.

Originally Posted by ChrisSlicks

Stage 2 limp mode, otherwise known as drive it to the dealer mode. In this mode the engine power is cut by disengaging the variable valve timing, limiting fuel and air intake and limiting RPM to a low number - 3500 in our case.

Typical reasons are:
- Engine overheat past 300 degrees (not applicable here)
- Bad readings from crankshaft position sensor

It sounds like a software glitch given that there is no code thrown. Who knows, the programmer could have left some test code in there that was supposed to be removed but never was. If it never comes back I wouldn't worry about it. If it repeats try to drive to the nearest dealer without shutting off the engine.