Civic EG

My car has been doing this for about 3 months

When the cars cold it runs great but as soon as it warms up it starts to sputter from 1900rpms till 2900-3100rpms

I just changed the PCV valve as it was clogged full and that has stopped my unexplained oil puddles but not the issue at hand

It's to the point I can drop my clutch at 4000rpms and it just hops forward and sputters till 2900-3100

I have an upgraded ecu and I tried plugging the old one back in and it did no solve the issue

I also have an exhaust leak where the headers meet the cat I have to fit, could that cause the issue?

i have the same prob.. it happen with my b7 after it overheated, and now its happing with my z6

I just find it funny that these cars have been around for 19yrs and a lot of people are havin this issue and no one knows why

I'm tempted to just take it to Honda and have them look it over...
I'm more of a do it yourselfer so it's kinda a last resort

yeah me too, but i wont take it to a shop

does your lose coolent?
at 1st i thought i was leaking coolent into the cylinders, but i found out
its boiling outta the over flow tank

but its like through that rpm range its misfiring
like it cutting the spark or fuel..

idk its pissin me off

thought i'd let you know 2 days ago i was pissed about this issue and just drove the shit outta it and the next day i started it and it was gone, even after it has warmed up... its been 2 days free of it now... but its more then likely back now that i am posting this.