I see all these other problems are solved with the fast idle valve or IAC, i replaced my iac, i dont think i have the fast idle thing anymore. Bled coolant, checked vacuum hoses, adjusted cable, adjusted TPS to .45V, still idles at about 1100 rpm. I changes the TB gasket also. Any suggestions? its a JDM B16 in a 92 4door.

 

alot of aftermarket tbodies have poor seals at the butterfly.

 

I had the opposite problem, my car wouldn't idle. I called STR and they said to adjust the idle screw under the throttle linkage. There is a small allen screw w/ a nut on it under the throttle cable, loosen the nut and adjust the screw up or dowm until it idles where you want it. Make sure you tighten the nut back down after the adjustments. Larry

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C4-T &raquo;</TD></TR><TR><TD CLASS="quote">adjust the idle screw under the throttle linkage. There is a small allen screw w/ a nut on it under the throttle cable</TD></TR></TABLE>


I had high idle after I got my thorttle body. I took it back to the shop and my mechanic messed with some little screw. I'm guessing its the same one.