the problem is that whenever i try to gas my car full throttle for some reason it will not rev past 4000 rpm. if i do it slowly then it would rev higher. its a gsr crx, if anyone has any input please reply thanks.

 

IS THE BYPASS (SECONDARY BUTTERFLY) CONNECTED. MAY ALSO BE A SENSOR OR CONNECTION IN THE DISTRIBUTOR. LET ME KNOW WHAT YOU FIND.

 

i did replace my coil so may be its the distributer, ill retrace my steps and check all the sensors and plugs. but what is the secondary butterfly and where is it located?

 

IT IS IN THE STOCK GSR INTAKE MANIFOLDS ONLY. WHAT YEAR GSR MOTOR? IF IT IS 94 -UP WITH A STOCK INTAKE MANIFOLD, IT NEEDS TO BE WIRED TO OPEN

 

its a jdm gsr motor i believe its a 95. i replaced the intake manifold and now im running a skunk 2 manifold.

 

THEN MY GUESS WOULD BE TO CHANGE THE WHOLE DIST. AS AN EASY TEST. IF THAT DOES NOT FIX IT, IM NOT SURE WHAT IT COULD BE WITH OUT LOOKING AT WHAT YOU HAVE

 

We did the same intake swap on my other civic. There is a black box that two or three ( i cant remember) vacume lines plug in too and also a sensor. Unplug the sensor and all the lines from that box and remove it. we did that and the car ran better. I was told to do that from a rice shop.

 

i had the same prob on my civic... felt like a bogging.
whats your fuel pressure? because my fuel pump went south

 

havent checked the fuel pressure yet but as for the black canister that was under the intake manifold i kept that there including all vac lines and the sensor.

 

u won't go passed 4 grand huh?

I found out I was running in safe mode when I had this problem but it was my chip actually

is it a stock ecu??

just giving ideas here

 

when i im flooring the gas pedal it wont go past 4000 rpm like its been chipped to redlin there and the engine makes a wierd noise and the needle goes back and forth at 4000 rpm area. but when i ease the gas pedal down only then it will go all the way to 7000 or 8000. the ecu is a b16 pr3 ecu i believe.

 

try using a 90 -91 ls ecu and see if it does the same thing

 

fuel filter clogged? or vaccume lines not on the right way?