rough running, power loss

[T5 TDI]

I suppose the cat or exhaust partially blocked is another possibility...

[baloo]

Cat and exhaust has been replaced by VW

[Moose man]

Hello.
Did you manage to check for DTC's??

[baloo]

VW have always informed me that there are no error codes showing

[carbon]

Did VW replace any of the leak off pipes or the blanking cap on the injectors as this can sometimes lead to air getting into the fuel system and causing a slight misfire on starting. These pipes don't always look damp with fuel if there's a leak.

[baloo]

I am unsure if VW replaced these pipes, I was informed that they had replaced the injectors so can only presume that these pipes were renewed at the same time.

I did myself renew these pipes sometime back when i first had a misfire on one cylinder. The problem now though is an overall rough running and not a misfire as i had previously had.

I will take a look though to see if all looks ok, they do look ok though and are not that old.

[Moose man]

Hello.
Partially block gause filter in the diesel pump inlet banjo restricting the fuel flow? OK at light loads and on tick over but not enough fuel under load. Worth a look.