High idle issue out of the blue?

[ImAudiHeree]

So randomly as of about a week ago my car has been idling very high. Ive already changed the pcv/pancake valve and clutch switch and reset throttle body through vag com still no effect. Next I'm going to try and clean mass airflow sensor and probably take the battery terminals off and touch them together to see if theres an odd static discharge or something. Ive already soapy water sprayed the engine bay to leak for leaks but didn't find any thing obvious so I'm at a loss need yours guys help on this one. Btw no check engine codes at all under vag com. https://www.dropbox.com/s/dbzxeqxwvt...%20PM.mov?dl=0

[2004B6S4]

probably a vacuum leak. soapy water would show a pressure/boost leak but not a vacuum leak (unless there's some method I haven't heard of)

[jakeoboy67]

any codes ?

you can try to re-tighten the intake manifold bolts, they are known to come loose with time

[ImAudiHeree]

Ok good to know anything to help me narrow my search makes me a happy camper ill take a look at your guys suggestions and report back.

[ImAudiHeree]

Well right after i made this post sure enough i got mass air flow sensor codes. So i checked the readings in vag com which where anywhere from 6.0 to 10.0 which are wayyy out of the spec of 2-5 so i swapped it out with a known good one and also had same issue. Then went to shop key to through flow chart and it says check terminal 3 for battery voltage with key on. No voltage. Next step is to check the fuel pump relay because apparently thats where its getting its signal for voltage with key on, haha this is an odd issue indeed so next step will be to replace fuel pump relay and see what happens. Guess i could always ghetto rig power straight from battery to terminal 3 for mass airflow sensor.

[ImAudiHeree]

Welp replaced relay cleaning mass airflow sensor with the special spray and connectors cleaned and still off the charts idle and crazy readings so maybe the both mine and the one that was thought to be good are bad? I've also heard about something about the intake manifold and some issues with those so I'll do some looking around see what I can find.