I am ready to bring out my Remington 870 and put this Jetta out of it's misery.
2000 VW Jetta 1.8T Wolfsburg Edition, 5 speed.
Here's the problem. Starting off cold, then engine purrs, but once the engine gets warmed up, stepping on the accelorator causes the engine to skip, breakdown, idles rough, and has no power. I have replaced 2 coils, rebuilt the turbo, cleaned the plugs, tested the fuel pump and fuel preasure and it seems to be OK. What is left? Fuel sensor, air sensor????? Help!!! Thank you to anyone who replies. [:@]

 

air flow meter

 

my buddy had somthing like that in his f-150 it turned out to be a valve spring problum or somthing. he ended up replacing the enjin because it was cheeper than a valve job.
sorry i dont know i dident ask him much. he was p*st off about it.

 

Did you check the water pump? I dont know if that helps your problem but thats something that goes wrong in jetta's