When im changing gears and my rpms drop below 3k or when im begining to take off on 1st gear my car sputters or jerks horribly...and doesnt acceerate like it use 2

Can anyone help me if this has happened to your h22a lude?

Since i bought the car like 2 yrs ago i never changed the fuel pump or filter..would that have an effect like this? or would it be that i need to fix my timong belt...
PLZ HELP ANY1!!!

 

oh yea... i have 3 codes after did motor swap...vtec selonoid, o2 sensor, and knock sensor.

 

dude, first thing i would recommend getting fixed is the o2 sensor...if there is one thing about h22 ECU's...its that they are sensitive to sensors....

i did my swap and have not wired vtec so i dont have to worry about the knock sensor for now, or vtec solenoid, but mine is also throwing the CEL code for o2 sensor...so i think thats what causes it to hessitate like you....

forget about vtec for now, worry about your lower end hessitation, then worry about vtec

 

i also have this hesitation, with h22a swap, with 02 sensor cel. , with code 21, and vtec works. codes come and go as they please, the only difference i notice is that it gets hesitant when the light comes on. but vtec still works at all times.

 

well when the light turns on; i hear my vtec but it doesnt pik up like it use to..
I've already changed the knock sensor n vtec selonoid.. but i still get the same codes..
So what i need to try next is to change my o2 and see if my fuel pump is trashed ..