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Name That Part! Mystery Pug Plug

310 Views 4 Replies 4 Participants Last post by  Macron95
Hi all馃憢
Hoping someone can identify this electrical plug and its function on my 2003 Peugeot 307 2.0L petrol (RFN EW10J4 engine).
See attached pic for reference.
Looking from the front of the engine, it is just below and to the right of the throttle body, and it seems to be attached via a piece of solid plastic to the port that the vacuum pipe from the crankcase ventilation hose plugs into.
Doesn鈥檛 seem to be any kind of sensor in that area - unless it is built into the plastic port itself - and there is no mention of it in the Haynes manual.
Any ideas?
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Could try here Peugeot Parts.
Might be simple vacuum switch, but not sure what its function is.
It could be a throttle position sensor or a parking feature for a connector that is not used in this application. If you unplug it does the other side have any pins?
As above I would think throttle position/idle switch used to trigger fuel cut off on over run

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Thanks all for the suggestions. The other side does have 2 pins in it drdino (see pic), but doesn鈥檛 seem like much room for anything else鈥︷煠
The plug itself is labelled 鈥淪icma鈥, which Google says is a Delphi type.
I took the throttle body off to get a better view. The only markings on the plastic (apart from the Peugeot and Citroen logos) turned out to be just identifying the type of plastic it鈥檚 made from馃う鈥嶁檪锔
As you can see, the plastic port seems to be only connected (wrapped around?) the metal vacuum port tube for the PCV system. Not sure if it could affect or measure the throttle position from there?
Would it possibly be a heating element? I remember reading somewhere that some Peugeot throttle bodies are heated to stop them freezing up in winter, but this isn鈥檛 actually on the throttle body馃し鈥嶁檪锔


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