I have a jdm h22a, we just put in a new head and now if I am just holding middle throttle it bogs back down to 1k then jumps back up. If you let it sit it idles w/o any problems. It only does it once the car is warmed up.
Heres the kicker, if I get it above 4k it runs just fine, no stall nothing. Even will kick into vtec.


O also this is an automatic, all fluid were changed.

thanks for all the help
JR

 

my f22 did this.

it was in need of a valve adjustment.

adjusted valves, and it worked perfectly

 

Guess that could be the problem because I just put a brand new PnP head on it.
I am thinking this needs to be done by an expert how much am I looking at?

 

I just want to say thanks for all the help, but we found the problem. Start checking all the sensors to be sure they were connected and the egr, and tps were crossed.