Bad idle but ruled a few things out

[Bickerton]

Righty had a bad idle on my valver since day one and have replaced a few parts
MAP sensor, Fuel filter, ECU temp sensor, checked all plugs and cleaned ICV
Still has an iffy idle that is usually when warm but can happen when cold, often feels like a small misfire and the idle never ever goes high, always goes low, will be fine then suddenly drop and chug chug chug until i tap the accelerator or on a rare occasion it cuts out. Sometimes it runs perfectly for ages, other times it's kack from the offset.
Also the revs are as standard just below 1k

I am starting to lean towards the ICV as i don;t really notice anything when i'm driving normally just really at idle (may do it at higher revs but don't notice it
I have cleaned the ICV thoroughly, am i supposed to be able to move the thing in and out by hand? i can't but dunno whether that's normal.

I have had a proper Peugeot dealer diagnostic done and nothing came back, but i assume if something works sometimes it may miss it, unless you guys know of another non ecu readable reason for this problem?

[ryanmt]

lambda or icv i rekon. Spray a bit of wd40 round your inlet too with the engine on, if the revs pick up youve got an air leak that could be causing hte problem

[mrmattholmes]

i would say its definetly the ICV mate, it cant really be anything else

[Bickerton]

lambda or icv i rekon. Spray a bit of wd40 round your inlet too with the engine on, if the revs pick up youve got an air leak that could be causing hte problem

Lambda was replaced at last MOT when i bought the car apprently, forgot to mention that

[ryanmt]

wasnt a crappy universal one was it?

[Liam_]

Checked your timing?