Seat leon mk2 1.9tdi cutting out/juddering/loss of power

[makaTDI]

Hi,

having some issues with my car and wondering if anyone can help.
its a 1.9tdi mk2 leon only covered 25k miles.

Problem started over a week ago and has gradually got worse, initially there was just a bit of hesitation at higher speeds 60mph+, would often feel quite sluggish. this has developed and gradually got worse, i could be driving along at 30/40mph and revs would completely drop and power would cut out. it then wont start for 5-10 mins of trying. eventually itll start and be fine for a while then the same problem again.

I plugged it in to VAGCOM and a Airmass sensor warning came up which i replaced as well
as a fuel filter. none of them have solved the problem.

could this be a glowplug or wouldn't that cause the car to cut out?

thanks for any help.

 

[towcester vag]

egr valve will cause a airmass fault and could cause a hesitation

 

[makaTDI]

thanks for the reply, would that cause the car too cut out completely also?

 

[James_R]

thanks for the reply, would that cause the car too cut out completely also?

Crank sensor.

 

[makaTDI]

Figured some more symptoms out, now the car only seems too cutout/act sluggish/rough once warm, upon startup its fine for 5-10 mins then it starts having problems, even on the motorway at 70-80mph it stutters/slows down almost cutting out.

anyone have any ideas?