Bouncing idle, euro-r

Post by **newkid** » Mon Sep 18, 2017 3:10 pm

From cold or when heated up car has a bouncing idle of roughly 500rpm. Ive cleaned the IACV and thats not made any difference, in the throttle body, there is only one hole to cover and when this is covered the idle bouncing stops, could it be the IACV is faulty?

Also if anyone is on www.accordr.org and registered could you pm me the info thats on this thread http://www.accordr.org/index.php?/topic ... -problems/

Thanks

Post by **Merlin** » Mon Sep 18, 2017 4:32 pm

Sounds like a vacuum leak to me. Are there any vacuum hoses of the manifold?

nitin_s1 · Post by **nitin_s1** » Mon Sep 18, 2017 4:51 pm

newkid wrote: Also if anyone is on http://www.accordr.org and registered could you pm me the info thats on this thread http://www.accordr.org/index.php?/topic ... -problems/

You have to pay to view anything important there.

hondaddict · Post by **hondaddict** » Mon Sep 18, 2017 5:37 pm

Did you check the coolant level?

Post by **NafemanNathan** » Mon Sep 18, 2017 6:35 pm

What happens when you unplug the IACV?

Post by **newkid** » Mon Sep 18, 2017 9:54 pm

I'll double check everything tomorrow. I presume ATR/euror don't have a fitv?

Post by **NafemanNathan** » Mon Sep 18, 2017 10:33 pm

Nope. Just the IACV on the back near the tb.

Post by **newkid** » Tue Sep 19, 2017 2:48 pm

Merlin wrote:Sounds like a vacuum leak to me. Are there any vacuum hoses of the manifold?

Not that I can see.

hondaddict wrote:Did you check the coolant level?

To the top.

NafemanNathan wrote:What happens when you unplug the IACV?

Makes it hunt even faster an puts eml on. Need to reset ecu at battery to clear it.

Post by **NafemanNathan** » Tue Sep 19, 2017 3:47 pm

newkid wrote:
NafemanNathan wrote:What happens when you unplug the IACV?
Makes it hunt even faster an puts eml on. Need to reset ecu at battery to clear it.

Well that suggests it's doing something, but putting your thumb over the port causing it to idle properly suggests something's amiss with it for sure. Really it should starve the engine of air and cut out when you put your thumb over the IACV hole in the tb

Max · Post by **Max** » Tue Sep 19, 2017 5:01 pm

Wouldn't that suggest its getting air from somewhere else so a leak in the air intake somewhere, maybe worth checking there are no splits in the intake pipe?