I swapped mpfi for dpi on my 89 civic dx. When I started it up, runs until about 3000 rpm but can't go any higher. Its like a rev limiter is kicking in. Also, I am getting a code 4, which is crank angle sensor. Is this inside the distributor? If I have to get a new one, are there two different ones for the Si. Thats what some car parts places told me. That there are to different id#'s. Whats the difference between the two and could that be the cause of my problem?

 

the reason u cant go over 3000 rpm is because of the engine code. I just had that same problem with my car, i replaced the distributor and that was it.

 

are there actually two different distributors or just one?

 

All the Si distributors should be the same.