Originally Posted by EG6 Civic

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