Posted December 14, 20204 yr comment_612486 Help!! I replaced the coil and ballast resister in my 1972 240Z, and suspect I may have the wiring wrong. (ugh) 1) Can anyone verify my understanding of the wiring in my coil/condenser/ballast resister area? Please see my schematic below and let me know if it looks correct. If not, what do I have wrong? 2) Where does the wire from the coil condenser connect to? 3) There are 2 Black & White wires (1 to the coil; 1 to the resister). How do I verify which is which? Thank You! Jughead Edited December 14, 20204 yr by Jughead typo Link to comment https://www.classiczcars.com/forums/topic/64851-72-240z-wiring-in-coilcondenserballast-resister-area/ Share on other sites More sharing options...
December 14, 20204 yr comment_612487 Your wiring diagram looks correct. Of course, you can look at the factory wiring diagram by downloading the FSM from this site. The condenser goes to the positive of the coil. Make sure the B/W wires are not touching anything (wrap with electrical tape). Put the key in ON. Use a voltmeter (or test light) to measure voltage to ground (I like the strut tower nuts for ground.) on the B/W wires. The one with voltage goes to the ballast resistor. Link to comment https://www.classiczcars.com/forums/topic/64851-72-240z-wiring-in-coilcondenserballast-resister-area/#findComment-612487 Share on other sites More sharing options...
December 14, 20204 yr Author comment_612489 Thanks Steve. I have the FSM. I couldn't find the Condenser in the diagram(!). I think I had the condenser going to the negative side! Would that cause the spark to be lighter than expected? (The coil's new). Link to comment https://www.classiczcars.com/forums/topic/64851-72-240z-wiring-in-coilcondenserballast-resister-area/#findComment-612489 Share on other sites More sharing options...
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