whats up people this my problem my car it runs good until vtec engage then it will start misfiring so i unplug vtec and now no misfire i change the distributor three times ,plug wires, spark plugs, fuel filter, and o2 sensor, map sensor, tps sensor numerous times i am ready to tap out can anyone help me . this is what i have b16 motor bisimoto header ctr intake manifold aem intake nology spark plug wires apex exhaust 310 rc injectos and s100 hondata. and i am only getting 150 miles to a tank of gas can some one please help me this all started when i tried to hook up a external coil

 

I would say start by checking the timing of the timing belt.

 

code 43 in fuel supply system and it seems like it is leaning out and causing it to miss..i would check your fuel pressure..it should be around 40psi..or maybe your fuel rail