98 1.8t quattro rought idle - stalls

[ed1380]

doubt it's a vacuum leak, sprayed everything with ether and no rev change. finally got a code for "MAF flow too low" I already cleaned it, is there anything else I'm missing?
it will stall everytime I drive it, but only once cold or hot doesnt matter. neither does rough or gentle driving. I initially thought a crack being opened with the engine flexing.
Heres a video I made last night. according to the measuring blocks it's running lean and when you blip the throttle it chokes up for a second and then revs
http://www.youtube.com/watch?v=fZ5QRfFAnbo

BTW i bought it "not running", so I dont know anything about the past. although it started on the first try when i cranked it, first thing was the timing belt, now I need to fix this. gf needs a car

if it matters it's a tiptronic

[Dynamite]

it does sound like the maf especially with that code. although it might be a clogged fuel filter as well. If you brought it not going then there are probably a lot of things wrong with it so its hard to know if the problems are related or different.

[ed1380]

I cleaned the Map sensor and it got worse. Surprisingly before changing the TB it ran fine even with a PCV house completely deterioration.


Currently it idles fine. Nothing like the video on YouTube. But what it does now is stutter when putting it into gear.

[ed1380]

I cleaned the Map sensor and it got worse. Surprisingly before changing the TB it ran fine even with a PCV house completely deterioration.


Currently it idles fine. Nothing like the video on YouTube. But what it does now is stutter when putting it into gear.

[ADNpro]

Mine did exactly this for awhile. Cleaned the MAF, changed the plugs and did a few throttle body adaptions and now its fine.
Also as mentioned above, replace the fuel filter. Wont hurt to even if it doesn't solve the problem.

[Dynamite]

If it got worse when you cleaned the maf maybe its a connection or the wires are corroding

[Wholsea]

I vote for a bad MAF. Symptoms are condusive to that type of failure.