[Vwdiesel] 92 ECO injectors

[Scott Kair]

    My 92 ECO 1.6 sortaTD has been experiencing gradually decreasing fuel
economy and occasionally I see white exhaust puffs at startup after sitting
overnight. Fuel and coolant consumption is nil, and with 180k on the clock,
I suspect that it's time for new injectors.
    The ECO injector needles and tips list different part numbers from those
of conventional 1.6 TDs.  I've got some old VW promotional material that
says that the injector tips were changed in order to increase their
longevity.  Unfortunately, my usual suppliers can't locate any new or
rebuilt injectors, this model having sold only about 1000 units over 2
years.  My question is whether conventional td injectors would be acceptable
for use in this application.  Break pressure on the ECO injectors is the
same on either unit.
    TIA,
    Scott Kair