Maf Replacement

[0yorkie0]

I recently replaced my MAF w/ a Bosch replacement for my 96 c220. I expected the rough idle and the horrible first couple engine starts, but its been 3-4 days of the same thing. Driving wise its smoother but! when idling(in ANY gear) it lightly revs(700-1k). Has anyone else had this problem? What is the longest adaptation time for this situation?

[W202FTW]

Any CELs?

[0yorkie0]

Not at the moment. The old one would occasionally, But this one hasn't yet

[hipnimahop]

1- try to replace your Fuel Filter.
2- Change your spark plugs (OEM ONES)
3- if not fixed, it might be your coils or your spark plugs cables.
4- or your Oxygen sensors at last.

please provide more info about the car.

[syncview]

your first step here is to look for a vacuum leak

[johnnybravo]

syncview, excuse the vagueness, but how do you go about diagnosing a vacuum leak, im 70% sure i have a leak somewhere although the car locks/unlocks fine, headrests work fine etc but how would i go about checking all my vacuum lines?

[hipnimahop]

check your throttle body as well. it gets really dirty because of the valve cover breather and it affects your idle. ( I disconnected mine for this reason)

[0yorkie0]

Ok, update.. Spark plugs changed, no change.. Fuel filter changed, OMG a little shake(as always:) showed a bit of the problem
http://i1240.photobucket.com/albums/gg499/0Yorkie0/IMG_1340.jpg
But still reving when warm. Im interested in an vacuum diagram if anyone has still got one.. All the links to the ones in search are outdated and broken....

[taz069]

If your liner is still under the hood their should be a vacuum diagram on it. Passenger side well atleast my 96 c280 does.