h22 engine not running right

on start up my engine runs fine ...but on takes off like its spitting ......sputt, sputt, and burning fuel like hell ocassionaly it coughs while driving :banghead: the xhaust tip looks black even though it passed the emmission test what could this be any vtec vets out there :

I'd guess o2 sensor but that's just a guess. Throwing any codes?

is the check engine light up? get it read at an auto parts store. also, pull out your spark plugs and tell us what they look like, how those look like is a fair indication of what's going on inside your cylinders

on start up my engine runs fine ...but on takes off like its spitting ......sputt, sputt, and burning fuel like hell ocassionaly it coughs while driving :banghead: the xhaust tip looks black even though it passed the emmission test what could this be any vtec vets out there :


Thread says he passed the emmision test. That means theres no CEL or code.

phat.. I need to know the numbers they got on your emmision test: HC, CO, O2, CO2, and NOx so we can analyze your engine problem.

pull the plug boots out and look at them, if you see cracks your spark is leaking. If thats it, it should get worse till it misses at idle.

Thread says he passed the emmision test. That means theres no CEL or code.

phat.. I need to know the numbers they got on your emmision test: HC, CO, O2, CO2, and NOx so we can analyze your engine problem.
ok

ok guyz here it is ..... the emission test show'd 0.0 on the co2 as for the code none in the dash wen you turn the car on. l when i jump the wires it show'd two blinks its more like __-_-___ is this code 1 or 20 ?

ok now heres what ive discovered while driving, ive got the rev below 2000rpm and the car just jerks, pops, shugg,take my foot of the pedal and the revs drops below idle and comes up again its weird ...i need al the help i can get now