SO not today, but at the weekend I changed both my valve cover gaskets, job went great. However, I now have a misfire :-(
Wonder if anyone has any ideas..
Random misfire code on cylinders 4 and 5
I've put new plugs in and swapped leads, misfire stays on 4 and 5
Took it up he motorway and got misfire on cylinders 1 through to 5
I assume it's going to be coil packs, but it seems odd that it was working fine and then a
rocker cover gasket now causes a misfire, it's very noticeable and is constant. Idle is fine, but you can feel it misfire, sit at 3k RPM and she seems ok, add load and she misfires, severely down on power obviously too.
CEL flashes when driving or idling after a while, but come to a stop and leave engine on and CEL will go off sometimes,
As I don't think it's leads or plugs my next step will be coils, hoping someone else may have some suggestions?
I've noticed a broken previously bodged crankcase breather pipe, need to order a new one, might renew the whole system to be sure or just delete it.
Ideas or thoughts from anyone? Getting a full VCDS scan tonight, that should give me fuel trim figures to detect a vacuum leak.