> drives the injectors harder therefore they would fail sooner. The only way
> I could see it be an injector failure is if:
> The ECU conversions or 87-89 upgrade not only changed the fuel curve, but,
> the way the injectors were fired. If I understood Scott correct, The 87
> uses a 50/50 on/off pulse, with increasing frequency to drive them Harder.
> Could the 88-89 change now drive them by increasing Pulse width duration?
Thing is, you got to have a pulse width that falls within a certain window of
time.
How much wider can go you?
Without hard numbers, it's pretty hard to say if the injectors are overdriven
in speed of operation or if the ecu cuts off. Is the pressure going up or down
at that precise moment? If it's stable or slightly up, the injectors are not
able to deliver at that frequency, if it drops, it's the ecu. Check that on
both model.
Ciao,
Francois Dion (francois@hyperreal.org)
-- Member: FLU #1722, PCNA http://www.fortunecity.com/silverstone/zagato/101/launch.html Alfa Romeo, Fiat, Lancia, Peugeot, Volvo, Solex