Random misfire on my Mk2 Octavia vrs tsi

[Heninem]

I’m hoping someone can help because I’m at my whits end. I have a 59 plate Octavia vrs and I keep getting random misfires and loss of power plus the car gets smokey and the engine management and epc lights come on . Now I’ve changed the coil pack and the camshaft sensor and even had a terra clean and the problem seemed to go away for a while. But the past few weeks it’s starting to do it again. I have noticed it’s more so when it’s damp or wet out side. Could someone place help me 

[Heninem]

Any body 

[Gizmo]

Have you had the car scanned?

 

This would be the first thing I did before throwing parts at the car.

[Heninem]

Yeah I’ve had it plugged in a few times and every time the misfire is on a different cylinder

[Gizmo]

So what are the fault codes?

[Heninem]

P0304 cylinder failure 

P130A cylinder shut off

P119A which was the fuel pressure sensor but I’ve changed that and made no difference 

[Mr G 76]

 

My first thought would be an injector/fuel issue. If the misfire moves cylinder, that rules an injector problem out. 

Maybe worth getting the fuel pressure checked, as could be pump related .

Edited 10 June, 2018 by Mr G 76

[Heninem]

I’ll get that done. I’ve also heard that the pcv could be the problem