d16y7 in 5th gen hatch 3k revlimiter wtf

[rnrmotorsports]

ok tonight i put a d16y7 into a 93 honda civic si hatchback, i used the following just so you guys know
96 civic d16y7
93 si intake manifold
y7 distributor with 5th gen sdisty internals
p28 5sp ecu

car runs fantastic however it cuts out at 3k like im hitting rev limiter all plugs plugged in the right way.

however there was one plug coming off the engine that didnt have a spot on the 5th gen si harness coming from the engine by the timing belt cover is this plug related to my problem if so how do i fix it if not what is my problem any help is appreciated

 

[ccsgsr1]

thats crank position sensor. you need that hooked up. Sounds like limp mode...

 

[rnrmotorsports]

so how do i wire that into a 5th gen running a p28 and a 5th gen harness

 

[sscivicsi]

running the p28 you do not need to hook this up. sounds like you have one wire off in the dizzy plug.