Where are the engine grounds located on the TTA's? To give you a little background, I was having idle problems and a slight off-idle hesitation that appeared to be igntion related. I swapped in a used Coilpak/Igntion Module I bought from Red Regal T and the car ran great...for about 3 days. Then it started hesitating again. So I thought I would check all the grounds. The only engine ground I could find was going from the intake manifold (on the passenger side of the engine) to the firewall. I cleaned all of the connections including the module to bracket and bracket to plenum. It seemed to help a little, but it may just be my imagination. I don't want to buy a new module until I am certain that something else isn't taking them out. Thanks in advance!