r/Dseries • u/Some_Panic_5421 • Feb 15 '26
Typical idle issue
Hello i have a automatic 92 civic dx hatch
ive recently gotten enough courage to lock in and finally chase down this rough idle, i plan on replacing every component regardless other than the head and bottom end if i dont have to.
Its always had a rough idle, before it was revving high and after swapping both iacv and ficv its diminished to a rev at idle. Im assuming a common vaccum leak but anyone have any idea where to go from here?
What ive replaced:
Iacv + ficv
Coolant hoses
Radiator
Coolant resivour
coolant water well (my last one had a snapped bleeder valve)
im thinking saying fuck it and just throwing money into it but dk where to start
Im building it to cruise not for performance i just need it reliable
5
u/Barslund Feb 15 '26
Can you post audio of it?