Mopar Ballast Resistor Wiring Diagram. 4 g ballast resistor for b bos only classic mopar forum how to wire mid 1970s through 1980s ignition systems retroing electronic on vehicles that originally had points allpar forums no brainer wiring question bmw 2002 and other 02 faq schematic a 5 vs fmj dave s place chrysler system test big block troubleshooting bypassing ecm with old read more. Mopar wiring electrical.
The coil does not go direct to earth. Buy 2 mopar nos ballast resistors 4 post 71 newer. Yes positive wire to the coil will energize the ignition slowing it to run but may burn up the coil without the ballast resistor.
Mopar ballast resistor wiring diagram basic electronics wiring diagram i am planning to replace the distributor with a mallory unilite pointless distributor the instructions emphasize the necessity of either a ballast resistor.
Coil primary will need to check polarity side should come from ballast resistor 3. Your tech instructions may denote applicable wire size. Ecm wiring harness ballast resistor and coil. 10127 customizable mopar chassis harness 21 circuit manual 90542.