I have a obd2 LS motor swap in a 95 civic cx. It has a idling problem, going up and down every so often. Its using a 2 wire IACV and an obd1 ls ecu. Is there something special that needs to be done when doing the OBD-2 motor to obd-1 car with this IACV? Or is the iacv just going out?

 

i think its just on its way out...your TPS could also be the culprit

 

on the bottom of the throttle body there is a valve that helps control idle also. i fixed idle problems on many b series by adjusting that. just take the 2 screws and cover off the back and there will be a white plastic type of nut with a plunger in the middle. just screw that plastic nut down tight w/wide flat tip screwdriver,and you should be alright

 

ok, so it has nothin to do with obd2 motor in an obd1 car? like some type of wiring i missed or swap item.

 

did you use a "spill free funnel" to bleed the coolant after the swap? Air bubbles trapped in the cooling system can cause idle fluctuations

 

yeah i keep meaning to bleed the coolant from any air.

 

clean the IACV and ur FITV using throttle/carb cleaner. Follow the link for specific instructions on cleaning the FITV

https://honda-tech.com/zerothread?id=1564019


Modified by SinsEvil666 at 1:54 PM 7/24/2008

 

clean the what and my FITV?

looks like your missing a word, for the first thing i should clean