ive read one of the other threads on servicing t/b, iacv, and fast idle air valve...this problem started when i service the t/b about a month ago...now i cant figure out this problem with idle fluctuation...any ideas???...Thanks....by the way im a Dodge service technician, if any body may need help with any Dodge products....Thanks...

 

Did you turn in the adjuster on the FITV?

 

yeah, check the FICV, make sure the plastic screw is tight. Also check for vacuum leaks.

 

93 accord 2.2L....SE....the ficv has to be screwed tight????

 

hey man...i set the fast idle screw all the down. but the idle still hunts???
also checked for vacuum leaks, not can be found...what else is possible???,or should i just take it to a honda dealer???

 

i have a 92 accord, and i found that a can of carb and choke cleaner helped me find my problem. spray the cleaner all around the back side of the intake manifold, if it idles normal, or idles up and stays for a second, you have found an intake gasket leak.its on the backside of the block where the intake meets the block.

 

check for vacuum leaks and coolant level...also could be that you may need to clean your iacv or the fitv

 

whats up man looks like the same prob i had for too long, best thing to do is to replace both of the icv the electronic and coolant valves you can pick up both a honda parts place and shave some bucks it only take about 15 - 20 min to install after u install drive it around for a few min. for it to work properly my would rev up and down i bought but one and it only lasted for a few weeks untill the other gave way to so replace both to shave u some hassel

 

If its not the fast idle vavle or the iacv I would recommend you check your PCV valve, that sit on the valve cover, a spring might be broken and even when you ficv or iacv are fine it will still have the dramatic jump in idle, plus the pcv is very cheap so it's an easy fix.