When does the distributor need replacement?

[fixkick]

on this car year, the 2 first checks , day 1 to home.

is huge crankbolt at 94ft/lbs set to TSB spec
and shields off of exh man.
see #4 tube ( this loves to fail,  )
and last, cheap china commie crap (C4 a poster here invent this name)  MAF sensors,  that are totally hopeless junk even at $15,  useless. if the suzuki P/N is on the sensors it is not C4.
13800-58B00 ( real suzuki maf p/n)  2nd best is CARDONE, rebullt and uses if good still.  this is like the heart of the engine (ECU +_MAF)