Guys, this is weird, I had my oil changed, and then it started making knocking sounds on top of engine, it quiets down in idle but as you accelerate it gets louder. Scanned shows P0012 something about retarded. How do I fix this, I even replaced “exhaust” vvt solenoid and “intake” vvt solenoid. I’m deaf and I work hard to enjoy nice things for wife and kids. Is this something I can fix ( I’m mechanically incline, welder, smart analytic thinker) my gut tells me it can be done from top, likely a valve or camshaft, or I don’t know how to un**** this situation, please, any advice would be helpful.


keynotes. Vibration/knocking feels strong at that fuel pump and also feels strong on top of the spark plugs. Can I fix this? I’m no quitter and I must try. Pointers would be a blessing