i have a problem and non of my friend reallie understand what to do . i was woundering if you guys knoe what's the problems would be. i get about 140 miles off a full tank . my spark plugs turn black after 5 min on idel. it seems to be running rich for some reason . it's a b18b motor in a eg.

 

check your 02 sensor

 

would the check engine light turn on if it was the o2 sensor ? i don't have anycheck engine light .

 

Not always, what mods are done to your engine?

 

ya not always but it can make your check engine light go on. since your check engine light is on that means its throwing a code. on the ecu there is a little hole that will have a little red light flashing out how many times it blinks and tell us if they are fast blinks or slow blinks. then go and find what the code is. there are many places capable of telling you. if you call a honda honda place they will be able to tell you what that code represents.

 

i just popped in a new o2 sensor. not thing has changed. what else could it be ?

 

OEM cap rotor/plug wires? What temperature plugs?

 

these are just nomal spec ngk plugs . i'm been replacing them like crazy eversence this problem started . do u think it could be the map sensor ?

 

It could be the map or tps sensor, but check the pressure at the regulator, also, if your fuel return line is clogged it will make your car run rich, but i'm guessing its a faulty regulator.

 

check to make sure the little o-ring is still on the map sensor