On the LHS strut tower in engine bay, locate diagnostic test connector, open the cover.
Looking at the pins, locate the first row closest to the hinge, 2nd pin in from the left(facing the engine bay) is the ST1 [IMG]

[/IMG] then locate 2nd row very far right(should be the only pin in that row) this is GND(ground)

, bridge them prior to starting engine and setting timing.
Allow engine to reach operating temp before altering timing!