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Discusión y preguntas relacionadas con el curso Fundamentos del cableado de deportes de motor
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I'm looking for confirmation that the pinout on these babies is as follows :
1 = Trigger
2 = Power &
3 = Gnd
I've spent an hour googling and can only find one mention on an Alfa forum about this. Just in case, the Bosch part# is 0 221 504 456
Thanks, in anticipation.
These are the same as some BMW's, they donot have internal ignitors.
15 = +12V
4a = Secondary ground
1 = Negative
OK - so how are they wired? I get the 12V pin, but I'm more than a little confused on the gnd and secondary gnd. OR . . . is Pin 3 (negative) taken to chassis ground, and Pin 2 (secondary) the low side trigger managed by the ECU ?
There is no "trigger" wire, they do not have built in ignitors. Its just like an old fashion 2 wire coil. Secondary ground goes to the cylinder head or engine block. Negative goes to the ignitor/ignition module/amplifier.
