I have no questions for the candles of 2, 3 and 4 cylinders, yes, they are not straight pretty, but in every way it is many times better than the candles of 1 cylinder.Most likely it's bleeding off fuel from the injector controller and injector.
The plug is firing ok, looking at the insulator and igniter. However, the dark brown on the threads is not an indicator of a bad injector. Thats oil residue on the threads.
I don’t think that such a condition of the spark plug is just a feature of GDIIt's both being a GDI. It's call fuel dilution. Excess fuel pressure bleed can be one of the symptoms but not necessarily the cause. Was the plug tight and seated when you removed it?
How do you drive the car regularly, In congested traffic or out on the open road?
Of course, I understand that gasoline on the spark plug can not point to 100% of the problem in the nozzle, but judging from the experience of forum users who unsubscribe from this topic, replacing one or more nozzles helped to solve the problem.It can most certainly be a number of issues.
Let them do what they think is right, the main thing is to have a result.Electrical, Fuel, Air. At least they're attempting to eliminating any possible problems without just assuming. The need to do a leak down of the Fuel system ie, HPFP pump, fuel rail, etc. along with a cylinder pressure and leak down check
Sorry, I don't understand you.The only time you'll ever get completely dry spark plugs is; to do a, "Spark Plug Chop Test."
This HPFP will always have pressure and fuel. The injector controllers and injectors, will also remain pressurized.
No, no, buddy, we seem to be talking about different thingsEveryone of the spark plugs you pictured where wet to some extent.