Have no idea what to try next, The car idles fine when cold but when warm i get a slight idle surge from about 750-900 rpm. Ive tried everything I can think of set the idle as per the book as well as timing, tried new sensors ecu gaskets only thing left that has not been changed was my distributor.The car throws no codes or no codes stored.

Its a 92 Teg with a b18a block b18b head using b18b valve lash, the head was recently service and replaced the valve train for dual spring and supertech valves to run with my cams once i get this figured out.
also using a blox manifold and a ported itr tb.

Anyone have any ideas or suggestions on what to try.

 

yes, clean the IACV when was your last full ignition tune up ? have you bled the coolant system ?

 

+1 on IACV cleaning. Report back after and let us know if things have cleared up or not.

 

iacv sadly is not the issue I will check my spark plug wire and see if they are good other then that cap and rotor is new.

 

well wires are all with in factory spec after I tested them. What are the common steps to go through to figure out this idle issue since its not the iacv