So about 4 months ago I traded my 93 civic for the da. The previous owner told me it needed the intake manifold gasket replaced, which he gave me with the car. After adjusting the ignition timing and cam timing, resetting the ecu, cleaning the iacv & adjusting the fitv. The damn car still don’t want to idle in one given rpm. it’ll idle anywhere from 500-1500 rpm. I’ve tried to adjust the idle screw in the throttle body & atjusted the throttle cable, still no dice I’ve tried and tried anyone have any ideas
And yes I’ve researched for hours upon hours about this. It also has a new o2 sensor as well
I’ve don’t most on his list and it fixed my issues. FITV, IACV, no intake leaks from any little hose, and adjusting the timing/ idle screw the proper way ( not so it changes back). I was just reading his post the other day and he seemed on top of it
you absolutely MUST disconnect the iacv whenever adjusting idle. if not, the ecm will just command the iacv to open or close, countering your adjustment.
vehicle at operating temp, disconnect the iacv. idle should drop to roughly 500rpm. if it doesn’t, adjust the idle screw until it sits at 500. reconnect iacv. clear code. allow vehicle to idle, undisturbed, for 10 minutes for idle relearn. if ALL of those steps are not performed, in that order, the procedure is compromised
Well ive tried unplugging the iacv multiple times now. And low and behold no idle difference, so im going to assume the iacv is bad. Now when i took a screwdriver and tapped on the iacv i noticed a slight change in rpm but it didnt last but maybe a second or two :mad:
Well after numerous tests and trial and error. I decided to check the timing again. And low and behold the intake cam was a tooth out of time. I just wanted to say thank you to all who commented trying to help. Now she’s running great
I replaced the plugs, wires, cap, rotor, tested the whole ignition system, throttle position sensor, cleaned the iacv, and cleaned and adjusted the fast idle thermo valve. I was about to give up and said what’s it going to hurt, I’ll check the mechanical timing. And low and behold it was off
I have the OEM Integra Service Manual and i have done everything i can to get the idle screw to stop adjusting on its own. I have done the correct procedure about 3 times now but after a couple of days, my idle starts to fluctuate a little and low and behold, the idle adjustment screw had came out again…
I’ve noticed that it tends to happen after i go for a lil spirited drive. what can i do to prevent the idle screw from moving?
seriously… after you get the screw set grab your chick’s fav fingernail stuff and put a nice dab from top to bottom across the thread and screw… let it set for 30 minutes and you won’t have that happen anymore.
also works great on oil pan bolts and pther stuff that you want to be able to crack loose again.
yeah, i made the mistake of using Loctite Red on that screw on my old throttle body and i dont wanna make the same mistake on this one…
but im definitely gonna give the nail polish a try. sounds like a good idea!
