i have a 91 civic with a b16 jap take out and it has a misfire. when i am driving threw the gears it is fine but when i get to a stedy rpm it starts to miss. i had a code for a o2 sensor but i changed them both and it still does it. it is really getting on my nerves and hope someone on here has had the same problam and they got it fixed. thanks for any help.

 

Did you reset the ecu after replacing the parts?

 

ya. and it still does it

 

has anyone ever had this problam?

 

more info needed.....what ecu are you using?.....tune? etc

 

it just misses when u get to a steady rpm and im using a pr3 ecu stock tune. and if i get on it it is fime or let off the pedal when it is doing it and get back on and it is fine for a second. no mods