I have checked the plugs a few times and they r all the same. Since the vanos selinoid fix the plugs look much better an r consistent across all cylinders.
Originally Posted by MarcusLSB
My apologies if this has been asked/mentioned but I didn't see it while searching the thread.
Have you done a compression test.. the symptoms you're experiencing sound very similar to a oil contaminated cylinder. Are all your plugs equally fouling? When my car was getting blow by my afr's would be doing exactly what you're describing.. oil was getting past the rings and mucking it up..
EDIT: I searched compression, but I see now you've had a leakdown done. So disregard.
"Horsepower is how fast you hit the wall. Torque is how far you go through it."