Rep Power: 223

im having rough idle as if it wants to stall .. I tried changing my gas to higher octane. I already cleaned throttle body and did ECU relearn after, but its still giving me problems .. any ideas?

 
Rep Power: 0

you clean ur idle air control valve?

its on ur TB but needs to be taken off to get cleaned.

 
Rep Power: 223

I took everything apart from the throttle body..

 
Rep Power: 388

You took the throttle body apart and cleaned everything and the problem was still there?

 
Rep Power: 223

I cleaned everything Im still having problems.. I changed the plugs too...

 
Rep Power: 0

ya i did all of the above and i still am having the same problem as if it wants to stall

 
Rep Power: 238

check your vacuum hoses, make sure you dont have any leaks. maybe try some seafoam to clean out the fuel system. possibly a clogged air filter.

 
Rep Power: 223

i found it it leaking vacuum betwwen the injectors and the manifold =( i need to get stock injectors now..
any1 knows the part number for stock injectors for lx coupe?

 
Rep Power: 388

Your injectors are ****ed? If the ex and lx injectors are the same, I have a set back at home.

 
Rep Power: 223

I recently changed my injectors and still making rough idles.. what could it be?

 
Rep Power: 0

what is ur engine idle rpm, it could be too damn low...if it is low check to see y it is?

dont know the right idle rpm, i got a dx and does not have a tach!

 
Rep Power: 812

idle should be 700rpm +/- 50rpm in neutral without load. if you have dx, you need an EX cluster. theyre cheap enough on ebay its worth just swapping it in to get a tach. or if you dont want it, they have engine diagnostics tool that plugs into the OBDII port and provide engine readouts of rpm and other stuff.

 
Rep Power: 223

what causes the idle to be low? our idle is controlled electronically...

 
Rep Power: 812

various factors, but usually a clogged intake system, dirty or broken iac valve, tps sensor, etc. mainly the iac valve, which lets in extra air to keep the car idle properly when the throttle is closed.

 
Rep Power: 0

I just recalled something. Before I got the civic I had a lincoln continental. The thing would idle high some times, after much trouble shooting of the vaccum hoses I found it to be a sticky idle control valve - change it and it fixed it.

this is how I did the trouble shooting - i took the iac off, and covered the port close to the intake manifold with my palm. Then I just slowly opened and closed it....the engine rpm went up & down...more port opening, higher rpm and vice versa.

plus take the iac off and see if it moves when u turn the engine on...if it is not moving...u know that is the culprit. (spraying engine degreaser did not help for me)

hopefully this helped....

 
Rep Power: 0

I just had rough idle and some misfires on my LX. My valves were way to tight from the dumbass that rebuilt my head, causing a leak into the intake manifold. You may want to have the valve clearance adjusted. A compression test would confirm a mechanical problem like this before tearing into it.

 
Rep Power: 0

all i can seguest is a bad altenator with a low battery