It wont go past 4k when im flooring it whether im actually driving or not. It will go past 4k when i bring it up slowly though. Ive replaced coil, plugs, and tested msd wires. all good there. What can cause the car not to go past 4k rpms? The only thing i can think of is that the timing belt skipped a tooth. im taking that apart now, what else could it be?

Oh yea, no check engine light either.

wow, this has been happening to a lot of 2gnts lately...it mite be the MAP sensor, but usually (at least w/ me) i couldnt get past 4k no matter what i did. it didn't matter if i floored it or slowly let it climb. so you have a slightly different situation, so it mite not be the MAP, but check it out

I checked the map sensor and the FCD that comes with the HRC kit wasnt getting a good connection. I reattached it and it still didnt work. I took it off and it worked. Then I reattached it and its working now. I have no idea whats going on with this stupid thing. If this starts happening again, ill take it off and if its fixes the problem its going back to HRC.

i took my star 2 kit off recently and it is doing the same thing, ,not going past 4 k , its like it has a rev limiter at 4. It drives like shit too. I dunno whats up , it dosent matter i might be getting a gst to part my kit too.. later peeps

Happened to me also man. My idle was horrible and sometimes would die and and I couldn't go above 4K. All I did to fix it was get a new battery terminal cause my positive wasn't tight enough on battery. Fixed everything. Good luck
-Dave