i have 00 Si with a jdm type r missfires if i apply more than 20% throttle i replaced plugs wires dizzy cap and rotor fuel injectors fuel filter any suggestions are greatly appreciated im even pretty sure its just 1cylinder thinkingnext will be the fuel pump im trying to do it without paying a mechanic cause i can more than likely fix it myself if i can figure out what it is

 

ignitor? mine had break up and thats what it was.

u made sure your getting a good constant spark on all 4

 

+1 for possible igniter problems.

 

Yup spark is good thanks I will check that out

 

put a fuel pressure gauge on it and tape it to the windshield and drive to see if the pressure drops out on it

 

meaning at high rpm. I would still find a known good ignitor and swap um.

 

ok 1 problem type r motor but the dizzy cap is for a b18b non vtec so does that mean the whole distributor is for a b18b cause the igniter i just got from the store for a b18b is bigger