vaNk182

so i just finished my swap i have a 98 civic with a b16 in it. i just now took it out for a drive at first it wouldnt idle so i got a flat head and adjusted the idle control thing untill my car idled at 500 rpms but no matter what gear i am even in neutral when i drive as soon as i get to 1700rpm-2000rpm my car starts jerking back and forth and when im in neutral when i give it gas and it hits those rpms its like launch control lol, and fluctuates up and down. but when im driving i can engage and ride the clutch passed 1700 and 2000 rpms and it drives and runs fine. any input or suggestion would be nice thank you.

ChokolAwt

iTrader: (1)

what ecu are you running? is it chipped?

DVDr

iTrader: (2)

Are you throwing any codes ?

First thing to check would be that, maybe swapped map sensor connector incorrectly ?

But before more guessing,

What ecu are you using ? and what codes if any.