Help!!! I have a Nissan 240sx that is ca18det swapped. I did not do the swap, and my problem is that it idles perfectly fine, but does not rev past about 2200-2300 rpms. It revs up to that point perfectly fine, and can stay there all day if you held it, but we cannot figure out why it is stuck there. Any help is appreciated, thank you!!! Suggestions are welcome.