Quote:
Originally Posted by john70t
There may be a diode. Using a thin wire (20 gauge) will limit current when tapping it. It shouldn't require much to activate.
Still, it's just a relay...
I'm a little confused with that diagram:
That nine-legged "spider" (#26 in the middle) should be a common battery/chassis ground leading to "h" on the right.
-The diagram indicates .5W (voltage) there.
-The same .75W is shown before and after the injectors.
-The circuit leg labeled "II Fuel Pump Relay" in the center/right of the picture does not lead to the fuel pump.
The 9/12+Volts which operate the injectors looks to be coming from below(#25), but I thought the Digifant System operated/controlled the fuel-air management.
Damn I wish EarlySMan was still with us.
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The number is the wire diameter in mm similar to gauge and the letter is the color of the wire. 0.5W is a 0.5mm white colored wire.
Relay II sends power to the fuel injectors, relay I, and the Digifant unit that looks like it then activates the fuel pump by grounding the upper terminal on the first relay (85) probably in response to some signal that the engine is actually running.