Technically, yes! They will fit, they will work just fine. IMHO, they were changed ONLY for emissions reasons. Perhaps they have a finer spray. The injection pressure is the same at ~155 bar. -Gary On Tue, 2004-10-12 at 22:24, mikitka wrote: > You can tuck this one in after one more question. > > Can I use the 86 to 90 ME/MF injectors in my 91 ECO? > > Thanks > Nick