I am pretty sure it started when i set my timing back from -6° to 10° stock. Thats when the pinging started. When i open my hood after driving it almost smells like sweet. Does that mean im running lean? I installed an adj. FPR and i dont have a gauge so i dont know what it is reading, when i installed it i had one of those regular PSI gauges that you plug into your fuel rail, not a stationary one. That is how i set the FP when i installed the FPR but since then i have tinkered with the FP back and forth in the hopes it would make some improvement so now i dont know what the hell it is at.
Just for the record here is everything i have done in the last 2 months in terms of replacement parts.
New Parts: Fuel Pump, Fuel Filter, ADJ. Fuel Pressure Regulator, PCV Valve And Screen, 02 Sensors, Coolant Temp Sensor, Air Charge Temp Sensor, New Mass Air Flow Sensor, New Coil, Cap and Rotor, Plugs (gapped), Wires (FRPP 9mm)
P.S. >> I Always 91 Octane Fuel. Recently cleaned and oiled K&N Filter