Quote:
Originally Posted by Sergio
His comments were in reference to the MZJ type solenoid he had in his post which does not have any built in polarity.
The Solenoid You have on your picture does not have magnetic blowouts, the + on the side is because there is a diode soldered from factory between the terminals. ....
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It was just the way it was worded.
That little diode is hard to see.
After cleaning off the crud on my OEM solenoid there is a little diode on it.
So, like the magnetic blowout design it's not the solenoid contacts or the activation coil that have polarity.
Having a diode soldered on it or a magnetic blowout circuit determines the polarity of the assembly.