ablack934doorcivic

just finished swapping a b16sir II motor in my 93 civic ex using a p30 jdm ecu and now when the car sits at idle the rpm's rev up and down unless i stay on the throttle til it gets above 3000 rpm any help or suggestions on how to solve this

LilSilver

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ablack934doorcivic &raquo;</TD></TR><TR><TD CLASS="quote">just finished swapping a b16sir II motor in my 93 civic ex using a p30 jdm ecu and now when the car sits at idle the rpm's rev up and down unless i stay on the throttle til it gets above 3000 rpm any help or suggestions on how to solve this</TD></TR></TABLE>

Check the all the plugs in the back of the Intake manifold and around the Throttle and Body. I don't know what it is called though. It happened to me a week ago, I forgot to plug in one of them. That was my problem, good luck to yours.

ErMaK

My friend had a similar problem with his prelude after swap'n in his frankenstein motor. Make shure that all of your vacume lines are all hooked up correctly, and that should fix the problem.