i have been silently following ur thread from day one and am highly impressed by ur work and the equipment (audio and the repair kit) u have ... best...
check for rust pattern in engine compartment and even bubbles in paint, half an inch in dia means there is a lot of hidden rust .. don't buy japanese...
I am sorry i haven't completed the post .. it needs a few pics like tps internal pics,etc plus some spelling mistakes are there and i need to be more...
it is (as i have seen by two different mechanics) for smoothing out idle ... how? i'm not sure but this screw is not to be messed up ..it comes with...