Hondata

Hondata wrote:Quick test: unplug the idle valve. If the idle doesn't drop to 450-600 rpm, you have a vacuum leak.

I unplugged the IACV valve and the idle instantly dropped and idled normal.

does that mean i have a vacuum leak??

thanks

i noticed the sticky topic above about thermostats, which got me thinking..... I have a spoon rad cap. I took it off and have noticed for the last 2 days now, that my lumpy idle doesnt happen as often at all. Im actually crossing my fingers to say that it may have stopped for now lol.

Does this ...

apparently im not the only one having this problem:

check out this link: http://forums.clubsi.com/showflat.php?C ... ost5304550

I'll try that and report back!

Every vacum hose and line has either been replaced or checked for leaks.

thanks

anybody else??

Hello there,

i have a 00 civic si with hondata s200b with rc 440 injectors, ihe.
After the hondata install i have been having this lumpy idle situation where the idle jumps from 1000rpm - 2000rpms.

Its really starting to upset me!

I have had the TPS set at 0.45v. I have also gone back to the ...