Jumping Idle (EK1)

[Dell99]

- need some help guys
-- did a quick search on the forums here and saw the Throttle Body cleaning, however didn't help

- my Ek1 when idle, jumps from 1k to 2k. Use to sit on ~900rpm
- when in gear there was no problem what so ever
- when turn on A/C or fan its the same issue

* as stated
** cleaned the throttle body
** changed Engine Oil
** what else could be causing it?

[dumped echo]

Cleaned the IACV?

Is it a sudden onset problem? If so have you changed anything on the car recently?

One time fixing a broken fuse fixed a jumping idle on a friend's civic, but can't remember which fuse. It was in the under dash box.

A short in the system or a bad ground may also cause it.

[Dell99]

anyone else

just searching for howto's on IACV

[MRB18R]

i think it's called hunting or humping:S not to sure but it use to happen on my old Swift GTi, i think it could be your air flow meter or censor...
if that might be any help?

hope ya fix it

goodluck

[Dell99]

thanks for the tip

searching for articles now. hope i can bring something up. But so far.... no luck

[chilli]

Perhaps you could check your spark plugs? And run some injector cleaner? Used to help my old car =]

[beeza]

IACV.Clean that out,if no workie,replace it.Then go from there.

[cristian]

does it only happen when you're not in gear?

a friend of mine who also has an EK1 had the same problem and i was advised that it could be the idle speed sensor...

[dc2dc2dc2]

i did all of the above
clean tb, iacv etc etc
in the end
came down to a dodgey thermastat

[Dell99]

ar crap.. so much to go through

but i found a article in cleaning the IACV

** but i can't find it on my car lol

* any more pointers on where the IACV is
** either way more hunting on my end

[OMG.JAI xD]

brotha. take your sparkies out.
dry em out/clean em. blow air into the leads where it sits on top of the sparkies.
or change them.

i had the same thing on my teg.
during cold its worse. it jumps up and down occasionally. not constant.
sometimes it shudders when driving as well.

i changed the sparkies. and bang. problem solved.
start with the cheapest/less time consuming options first.

IACV may involve taking your manifold off. and will set you back an hour or two depending on experience.

hope it helps =]

[Dell99]

thanks for all your help guys

Whats been done so far

* Changed engine oils
* Cleaned throttle body

** On Saturday going to
* Change sparkies (thanks OMG.JAI)

** Clean IACV, if i can find the faka (thanks dump, beeza, dc2)