11-17-2018, 02:05 AM
The driver pin 3 is
0v key off
the same pin goes to 0v key on and sustains for 3seconds then goes to 12vdc after 3 second timer expires.(inside ECU)
if you crank the engine, pin 3 goes to 0v full time cranking, so the engine can inject full.
at no time must power pins drop below 10v. ( and there are surely lots of ways to cause this, huge, and ask if true)
battery cranking voltage is near that, 10v to 11, if not fix bad power first.
0v key off
the same pin goes to 0v key on and sustains for 3seconds then goes to 12vdc after 3 second timer expires.(inside ECU)
if you crank the engine, pin 3 goes to 0v full time cranking, so the engine can inject full.
at no time must power pins drop below 10v. ( and there are surely lots of ways to cause this, huge, and ask if true)
battery cranking voltage is near that, 10v to 11, if not fix bad power first.
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