Holley 4 Brrl gm ecm

[Garfield Willis]

On Sat, 20 May 2000 22:08:17 -0400, "nacelp" <nacelp at bright.net> wrote:

>I was using a 749,
>just tried 2 TBI injectors on one driver P+H, and killed the ecm.
>No smoke, just stopped firing injectors, but the LED still flickers (in
>parrarel with injectors),
>any one gotta clue about that?

Um, sure. The drivers as almost always bipolar devices, that current-hog
the load, and fry themselves via thermal runaway if they're overloaded
beyond their design rating. They then become somewhat "high-resistance"
devices, sufficient to operate an LED load of 30mA or so, but won't pass
enough current to pull in the injector solenoid.

Has to do with current-carrying capacity of the contactor. :)

Gar


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