Advice on my sunny
 

Hi guys looking for some advice, i know many of you are clued up on mechanics so hoping you may have a idea, the little sunny of mine is having a issue with idle, any suggestions from you guys,

My tick over issue, i have had the car for over a month and still cant get this tick over issue sorted,
In the mornings from cold, sits around 1800rpm, leave to warm for up to a min,
i'll drive down the road and once pulled up to the junction she will either rise to 1900/2000rpm or drop to 1500 then straight back to 1900 and do this 3/4times at the junction like baaa burr baaa burr sought of thing lol,
Once driven she will idle at 1050/1100, but then at the next couple of junctions sit at 1500, its driving me mad.
it stinks of richness,
Things i've done,
New standard platinum plugs
new genuine leads
new dizzy
new rotary
new fuel filter
new coolant temp sensor,

cleaned the maff, then swapped it over in-case faulty
cleaned the idle control valve which had already been done, spring is spot on too,
boost leak test all fine,
Tps set right,
Throttle body's shut propley.
pcv valve working fine,
No DV.

Car is running just a Apexi filter, goose decatted system, Forge fmic and pump,

think the fuel lines were swapped out from pump to filter with larger new rubber ones i believe,
Trouble is the guy i got it off didn't have a clue at all so cant take his word
Any other things to check im going mad here!!

could be an inlet manifold leak ? - thatll do crazy things to a tickover ,, any signs or clues if the inlet has been off at all ?

no signs , im going to go over it all again later on

we used to spray something around the inlet to test if suspect - was a long time ago but if it was inlet manifold sucking in air the revs would change when area was squirted - sorry its been a long time since I had that issue but might of been carb cleaner or wd40 etc

just have a fire extinguisher handy if you try this in case a stray spark catches

the spray test doesn't fix anything but as a quick easy test it can be very helpful - it really does sound like an inlet manifold or possibly vac pipe leak ,,, just a guess though and im not a mechanic but if youre at the pulling your hair out stage its worth considering

thankyou i will

Try the old tissue method to see if there are any air leaks .

I'm as broad minded as the next man but getting sexually aroused while car fault finding is wrong on so many levels :vom:

Is it a cone filter?

My mate just broke one up so if u need any bits let me know mate

:ok: