Originally Posted by jchammond

You don’t have wires, you have coil on plug setup
With the miles on your Z, and it being your dd, I’d do plugs,belt,tensioner,hoses,coolant flush,upper plenum cleansing w/new gasket,Pcv valves,power steering fluid flush & fill,remove & clean MAF’s & ck all other idler pulleys/as they may be worn & need replacement too.
That’s a start