Thank you for your help so far in clarifying what I actually screwed up. In a previous post you mentioned to have the wiring diagram for this car, so I had one more question - its probably a silly one.

When I do go to change this, it goes through a bundle of wires to the ignition coil which I can't really get through. Would it be acceptable to bypass that harness with the proper gauge wire and send the wire from the coil (which terminal should it go to? I can't expressly tell) to the plug and then crimp it to the wire at the plug? I just don't want to end up doing something when I should have done something else instead. Also, when the wire leaves the plug and heads to the back of the fuse box, where does it end up going to? I just want to make sure I replace everything that needs replacing.

On another note, the car runs better now that it ever had (no more skipping at idle, no more low idle), and all of a sudden lights which didn't work before now work again (like the light in the glove box), so it seems that doing this somehow made the car better, or maybe just shortened its life, who knows.

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87 300E
202k on the clock