Engine won't rev past ~ 4k

[daveyfx]

Hey all,

This problem just hit me out of nowhere. I fired up my 99 GST to go home from work and in first gear it felt like I hit fuel cut just before 4k RPMs. I would say that at around 3,800 it just refused to go any higher and felt like it hit a brick wall.

I proceeded to circle around my apartment complex a few times and sure as anything it experienced this fuel cut-like problem consistently and in any gear that I was in.

Any ideas?

 

[olmytsi]

Is this on or off boost? Does it change with the amount of throttle you give?

 

[Froyd79]

I am gonna go out on a limb here. Since you said it is out of nowhere. But did you happen to install any sort of a stutterbox or rev limiter of any sort? Or if you have one installed maybe the clutch switch it is wired to is stuck in.

 

[daveyfx]

I've got no stutterbox system. All my mods are in my profile

This is "on boost" I guess. Half-throttle is enough to cause the problem at least.

 

[cool_g_83]

Check your MAS to make sure it is plugged in fully.

 

[DSM90AWD]

Possibly blow off an intake/IC hose? Check all connections and check for boost leaks