hey hows it going? I have a B18C in my 92-95 EG and for some reason my RPM gauge will studder and jump around at random like ill be cruzin a 2k and it will studder and jump to 8k not revin the motor but when it does it the motor studders a little like its having a miss fire or something but it dosent do it all the time. what could this be cause by? im thinking something in the distributor but i want some other opinions first. and another problem is that my stock B18C didnt come with a spot to hook up a vtec presure switch (it was blocked off like from factory) but i use a D15B vtec silinoid and the whole unit it works but im not sure if it will effect the vtec popin or mess with anything like ecu wise
if this dosent confuse you can you guys help me

 

the missfire problem is likely your coil/igniter


the v-tec ---- i have no clue about, but if it isnt broken dont fix it

 

----- boy

 

WTF??

 

It's probaly your coil, happend in my ex's accord did the same ---- as your's

As for the vtec are you sure it's a b18c and not a b18b. The only motor ive ever seen that had a block off plate where the seloined should be was my old d15b non vtec

 

also happened to my little brothers civic, i replaced the coil and the ignitor and cured the problem, it`s prob.ly just the coil tho..

but anyway, make sure you have good ground, if so go for the dizzy

 

thanks guys ill change the coil and see what she'll do

 

Im 99.99% sure it will fix your problem.

 

igniter going bad, it happened to me twice, it only do it when the car is at normal temps

 

Maybe it's a B18C block with a B18B head, someone wanted that extra ~35cc really bad?

EG6 Civic - post a pic of the head and valve cover