1.7 CDTI - Stutters, then runs super rough, stalls and starts back up after 1h.

[rlievens]

Hi,

For the 2nd time now I have encountered the same issue.
My car doesn't get used much for long trips nowadays but I encountered this problem on his last long trip a week ago and one month ago:

Car driving fine, full power no error messages.
Suddenly no power when pushing gas pedal, car begins to stutter instead. But still runs in idle. Engine light comes on.
This problem gets worse over the next seconds until the car runs so rough in idle it stalls.
Restarting the car goes suuper rough or not at all.

First time I waited about 1 hour and after that the car worked fine again, even after a 1 hour drive. Engine light went off.
2nd time I had to get it towed as I was on a motorway. When they returned the car it started up as normal and engine light was off.

My guess is some sensor that is acting up, or something getting clogged. But offcourse there are a lot of things in an engine
Could it be the EGR valve sticking? I cleaned it last year and it's about 4 years old. I heard EGR valve doesn't throw up an error code.
Could it be the injectors?
Air sensor/MAF?

I don't have enough experiencie with engines to pinpoint the problem myself.
Any suggestions are very welcome.

BTW: i have no way of reading fault codes unless if I go to a garage.

Thank you!!

[rlievens]

Garage guy called, they have read the fault codes and say it is the EGR valve...
Not sure if I want to spend 330 euro + labour. Might get an aftermarket one and replace is myself..
Or try cleaning it again myself before replacing it.

Would you guys trust a cheap EGR valve?

[Kiel0777]

I had my egr valve from euro car parts nearly 2 years ago now and had no issues at all