bouncy idle

Post by **si import** » Sat Feb 02, 2013 4:34 pm

When warmed up the idle starts bouncing. i have changed the IACV and the FITV has been removed . what are the other possibles causes that could be doing this.
cheers Jon

Post by **Vtecmec** » Sat Feb 02, 2013 5:07 pm

Low coolant, or a vac leak?

Post by **rob quilter** » Sat Feb 02, 2013 5:20 pm

The above. Also, when did you change your IACV? Could maybe do with a quick clean with carb cleaner?

Rich · Post by **Rich** » Sat Feb 02, 2013 5:31 pm

Mine was caused by a vacuum leak, turned out my oil catch can wasn't air tight

Dbo · Post by **Dbo** » Sat Feb 02, 2013 5:31 pm

My son's did this just before the tell tale leak to show his waterpump was on the way out, even when we replaced the pump we had to air bleed the water system 3 times before it stopped .
Could be worth a check

Mine did it for a while and it was the TPS (throttle position sensor) out by 1mm.

Bri · Post by **Bri** » Sat Feb 02, 2013 7:00 pm

I have had it twice once a water level issue, once a split vacume hose right underneath the pipe at the back of the inlet manifold, it can also be a bad connection on the fitv plug.

Post by **si import** » Sat Feb 02, 2013 7:40 pm

Thanks for all the replies. Ill have a look tomorrow and report back.
Cheers jon

chrismc · Post by **chrismc** » Sat Feb 02, 2013 7:41 pm

Over advanced ignition timing caused the idle to bounce on mine...

Post by **fweakyg** » Sat Feb 02, 2013 8:10 pm

My car hunted for mmoontthhssssssssss ..... Thought I got it sorted when I got a mate to have a lil tinkle but then it jut started again... then it just stopped ???!!! Now shes stopped panting and strater purring again

.. Ive done a thread on here about it somewhere.... As much help this info was for you hahah... sorry i dunno what started it or stopped it