So number of idling issues with this one,

First one happens quite often, when coming to a stop the revs love to jump up 200-400rpm, sometimes they go back to normal within 2-5 seconds, sometimes they stay above 1k for 5 seconds.

Second issue started today, when starting, revs jump to 2-3k and stay there, turned it off and started ok-ish but idled low..almost stalling.

Also maybe im just paranoid but when revving the engine a bit, revs seem to stay up longer... sort of not dropping as they should?

Anyway, sorry for my poor explanation. I have searched and found that number of sensors need to be cleaned / replaced, but i am a bit rusty on the location of said sensors and maybe while at it, people might have had very similar issues which they would like to share a how it was fixed.

Also where would be the best place to order new sensors or it maybe worth buying 2nd hand ones?

The above plug should be connected to the MAP sensor of a lesser model

It's a common wiring loom, that plug is unused in our cars.

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Democracy is two wolves and a lamb voting on what to have for lunch..
..Liberty is a well-armed lamb contesting the vote.

Project é - my 306 project thread.