The 90 Formula with TPI needs a new connector on top of the coil. Sometimes the car will stop running, and wiggling these wires will fix it.

There is one item order from a dealership now; but I'm not sure if it's the proper one. The search only reveled one part number at the dealer. There are two plugs on top of the coil. I need the one in front, circled in the photo.

The formula must not have the factory plug as the wire has some heat shrink a few inches up.

90 Formula:



Here's the factory 91 GTA for reference.




Here's a wiring diagram I got from MSD.



Anyone know more about where to get the proper plug? I just found one in the link below at Napa; not sure if it is for the front or rear however.
http://www.napaonline.com/Catalog/Ca...RecType%3aA%29

 

go to rockauto.com they have them both, the black and the grey. find them under "Electrical-connector, Ignition coil connector"