got a hf with a dohc zc for about a year and a half now and all of a sudden i get a bad stumble between 2000 and 2500. i have replaced fuel filter plugs and wires and still have the same problem. im thinking tps u guys got any ideas?

 

does this happen while under normal acceleration or at full throttle?

 

i think my d16a6 had the same problem, but it was around 4k rpms. And i never figured it out...it blew up soon after though.

Better luck to you

 

So did you figure it out or did your motor blow up to?