The problem has been known for YEARS. There is a reason Nissan switched the design in 95. After watching injectors die as VA increased its Ethanol use (Federally Mandated, btw) we saw loads and loads of injectors die. Some were dying within 10k miles of being installed.
I switched to new style injectors in 2006 for a reason.
"boobies have power" - Bernie(NoVA)
1993 Ultra Red Z32 TT Convertible 2003 R50 2+2 4WD