For a few days now me and a friend took out the h23 out of his 1992 prelude si which was automatic with a bad engine and we swaped another H23 and a manual trans...it was a success and everythin worked fine but there is a wierd problem... when the engine turns on cold it idles at 2,000 rpms like normal but after it heats up it starts surging and it keeps going even after we drive it.. i want to kno what can cause the surging on that engine.. an iac valve? fast idle? vacumm leak??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2ndchirp &raquo;</TD></TR><TR><TD CLASS="quote"> an iac valve? fast idle? vacumm leak??</TD></TR></TABLE>

sounds like you already know what you need to do.

 

https://honda-tech.com/zerothread?id=1979500

 

thanks!!!!