1997 jag xj6- helpp

I’ve got a 1997 xj6 and I’m trying to fix it up . It ran beautifully till I drove it to Texas… ran great lol I got back to south dakota… the kid I bout it from failed to tell me all of its issues. I’m having trouble codes for the first cylinder coil. And there’s a bushing or something "lower fulcrum bushing or bearing:? Knuckle something… Not exactly sure looking for some help on the names and such so I know what I’m looking for because the import shop is giving me craazyyy prices on some of these things

Look on partsgeek.com or rockauto that’s where I pick my parts up and they’re fairly cheap comparatively speaking.