I have a OBDI 96 prelude with the usdm h22 in it.....I tried the OBDII JDM ecu W/conversion harness and everything but, my check engine light came on right away and after a couple minutes of driving it, it starting idling really low and shut off on me a couple of times....I didnt feel much of a difference in performance...is it beacuse its a jdm computer with an usdm motor?

 

i think you are a bit messed up

96 prelude = obd2
obd2 jdm ecu = i doubt you have one...they are super hard to find...

what year is the motor??