I have a gsr swap in my civic that I recently purchased but it starts surging on occasion. It doesn't do it all the time though. I wanted to see if anyone out there had similiar problems and what did they do to fix it.

 

any error codes?

possible vaccum leak?

 

Check ign and valve timing... how's the timing belt?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CycloneBlue_1.6EL &raquo;</TD></TR><TR><TD CLASS="quote">Check ign and valve timing... how's the timing belt?</TD></TR></TABLE>

why would that make it occassionally surge, and not all the time?

 

try cleaning the iacv with some carb cleaner

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IVI &raquo;</TD></TR><TR><TD CLASS="quote">why would that make it occassionally surge, and not all the time?</TD></TR></TABLE>

I've learned from experience that timing is usually a good place to start. You should also check the connections at the ICM in the distributor. My 92 ls was doing something similar to what yours is doing (I think.) One wire was loose on a terminal on the ICM, that caused all sorts of problems. My valve timing was also off...

 

Im with zerogrip, sound s like the IAC to me especially if no error codes