Erratic idle

[MRGC]

Drove down to Batemans bay and back to Sydney last weekend.
On the way back every time I was climbing acceleration starts to slow down around 2000rpms I get this erratic idle that goes back and forth between 100rpm it can be seen and heard.

I've posted a YouTube clip, any ideas guys?
http://youtu.be/xxpcC4rxRcM

By the way ignore the traction lights, need to wire up my right wheel speed sensor.


, [____],
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()_) ()_)-------)_)

[Banshee]

Seems to be an RPM stability issue. Not idle, though. I would first suspect the things in the feedback loop that control engine speed & fueling.

It's a CRD? First things I would check for are O2 sensors and the DPF burnoff routine in case either are playing up.

[MRGC]

Originally Posted by Banshee

Seems to be an RPM stability issue. Not idle, though. I would first suspect the things in the feedback loop that control engine speed & fueling.

It's a CRD? First things I would check for are O2 sensors and the DPF burnoff routine in case either are playing up.

Yes CRD, I don't have o2 sensors and dpf it's an 09.


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l----L -OlllllllO-
()_) ()_)-------)_)

[Clarky]

Originally Posted by MRGC

Yes CRD, I don't have o2 sensors and dpf it's an 09.


, [____],
l----L -OlllllllO-
()_) ()_)-------)_)

Are you sure? I thought all modern cars had O2 sensors?

I found this
https://www.sparesbox.com.au/oxygen-...awRRoCENbw_wcB

[MRGC]

There is none on the exhaust


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l----L -OlllllllO-
()_) ()_)-------)_)

[rang0]

Have you checked for a vacume leak?

[Banshee]

Fair point. I don't know enough about the CRD to help, other than that.

Good luck!