Yeh and I'm stoked that this two and a half month pinging / fuel economy issue has been sorted. Its been shitting me, knowing that there has to be a reason for the pinging but not having enough knowledge on the workings of the engine and EFI side of things to figure it out.
If it hadn't been for my urge to modify the car a little I would probably not have found a couple of the other little things wrong with it at the same time like the fuel filter being pretty clogged, the drive belt with cracks in numerous areas (visually looked ok until I got it off the pulleys).
Now when I hit the throttle I could almost get a semi
at the acceleration... hehe.