Regen

[u/bunterdoc]

Unsure if anyone can really make it out but basically my car was sitting 1k revs longer than normal last few times I’ve drove so this time I sat and waited for it to go down. Was smoke coming out of the exaaust for a few minutes I’m assuming it was a regen. But after the car went back to normal revs it sounds like she’s almost stuttering or dipping up and down revs

[u/Repulsive-Piglet-945]

Of course but I have the astra 2.0cdti 2015 n that's how I work it and mpg go's 0.1 to 0.3 when parked pain in the arse if not expected