CivicB18B1

iTrader: (2)

Hi guys, i was going to work when i started my car it makes a strange idle problem.


take a look at the video:

http://www.youtube.com/watch?v=KN0EQN5dULo


NOTES:

- Same problem happened 2-3 times last winter when i start the car with cold engine. After 2-3 minutes, the problem dissapear.

- There is black Smoke comming out of the exhaust as you can see.

- Engine is shaking and idle goes Up and down.

- I cannot drive with the car, if i give too much gas, the engine will goes off


Thanks.

richardparker

iTrader: (7)

I would check the manifold first.
Mine was getting cloged up and I was starting to see the same issue.
Cleaned it out and no more idle issues at all.

my top cover was cloged pretty good and the 6 holes that go into the each manifold tube were about 25% the size they should have been due to the carbon/deposits.
Look at that.

richardparker

iTrader: (7)

I just watched the vid and mine was not that bad you could'nt hear mine threw the exhaust at all.You could notice it holdin the steering wheel with a little shake durring idle.
Check for leaks,rotted vac lines.
you need to get the idle stablized first before anything for sure

StreetKA

iTrader: (8)

maybe a filter ?

fuzzy02CLS

iTrader: (2)

I'd say bad IAC valve

StonedCL

iTrader: (1)

It is throwing a CEL ?
Misfire, coilpack?
clean out your Egr port.

CobraSpdRH

I would second this one.

civicdrivr

iTrader: (9)

Id say IACV as well, but Im mostly concerned with the black smoke.

Do you have any CELs?

friesm2000

iTrader: (4)

yeah check your IACV (and clean out if neceesary) and clean out your EGR ports too while you are at it, to start with basics

(the smoke is just from the surging idle, and should clean up once the idle is stabilized)

civicdrivr

iTrader: (9)

Black smoke from the fluctuating idle? That doesnt seem normal to me, unless its running rich.

friesm2000

iTrader: (4)

yes, running rich from the surging idle, from intermittent air flow (also the cat is not doing much cause it has not lite off yet (it is still dead cold), so all that fuel goes right through it

Nersh7

go to town on cleaning anything to do with air intake, should run like new also

aznboi2424

iTrader: (10)

the video shows a CEL. Pull the code and let us know what it is, it will help in solving the problem.

rp_guy

IACV is sticky.. quick test would be to plug the port on the iacv and see if it goes away

CL-S progression 01

iTrader: (2)

looks like a vac leak man that motor doesn't wanna stay going, check all hoses!!!

and then look into coil packs or w/e.

what is that rattling noise? it's quite severe. is that related to the motor problem? cause it sounds like the motor is being choked out.

Just unplug the iac and see if that changes the car characteristics. but i don't think it will. Sounds like the car is sucking up air when u were near the hood bro. Don't u hear it?

turn off ur a/c and see wtf is up.

if the motor is cold it will run with a vac leak but when it warms up it will choke itself out. so look into that and see if that is the problem.

but honestly it seems like a vac leak. loud engine bay and rough idle... looks to be the culprit

CL FWD SPEED

could be a bad TPS

CL-S progression 01

iTrader: (2)

very good point^

that will effect shifting a lot.
how are the shifts? or can u drive it that far