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Full Version: Undulating/unstable throttle at idle - Peugeot Partner 2005 1.9 @ 160000 km
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For some reason the idle speed switches between being stable and undulating. If I increase the throttle, it will stay stable at a higher rp, and it won't undulate while driving.  

[video=youtube]http://youtu.be/axS4HJW-kZk[/video]
(09-12-2019, 08:46 AM)cancunia Wrote: [ -> ]Maybe the waxstat?

https://www.berlingoforum.com/thread-111...ht=waxstat

Thanks for the quick reply. Mine is a 2005-model, and I have the DW8-engine. Does it still have a waxstat-controlled idle?
going by the age of your vehicle, 2005 , the engine will be a DW8 B version which will have electronic idle control