I'm too primative for pictures...

Even on the switch from the 89 to 90 3.0 , the 1st ones call NIKK ( I don't have the 3s with me) that were superceded dy ones with Denso writtin on them , the "sheet" spacer grommet is of different hieght and originally ( before recent superced) the o rings were different # , slight differnce in diameter of cross section of o ring

I ran 5 used Sonata and 1 new Denso for a couple years.
I had to get an assortment off sheets , and o-rings to make it work. the rail will sit a little lopsided if you put the denso at one of the corners it's more obvious.
I've seen too many vehicles in the yards dead from o ring failure fires.
If you change them change all six to the same inj.
It aint worth the risk if you like your vehcle. Also did you try getting bad injector ultrasound seviced. I never had a Denso injector fail electricly.

dave h.
'89 Raider V6 5spd;Aisin Hubs;; Gen2 LS: frt. brakes, rear coils;U.C.arms;R.trailing arms;idler arm; rear LSD axle w.disc brakes ;2 battery system for Dog's fan; relocated ECU; custom bumpers;J.Baker receiver;Conferr roofrack; t-bar crank.