Hi folks
Tech heads needed 🔧
My A3 2.0FSI 2004 is idling low 650-700rpm
Now iv scanned it with my vcds and showing no faults or misfires.
Here's what iv done so far since owning the car engine wise.
New Egr (had fault code when I bought it, and after taking it apart had the usual sheared teeth on gear)
Cleaned TB and reset it.
Cat back milltek non res exhaust.
Now it had been running fine until about 10 months now.
I can't find any vac or intake leaks at all.
So now I'm thinking maybe it's the pcv failing/failed.
When I take the oil cap off there is a slight suction and a change in engine note with a slight wobble....is this a sign of a failing pcv or normal?
Many thanks for any input.
Cheers
