June 3, 20205 yr These keep failing fast, thinking on trying to buy from Subaru. Saw this old post about coil incompatibility, wondering if could be why these fail so fast?
June 3, 20205 yr What is your secondary ignition voltage? A lab scope trace of the secondary ignition waveform would be a good place to start. Ignition modules die from heat. This is due high resistance in the secondary ignition, overly long dwell times, or improper cooling. GD Edited June 3, 20205 yr by GeneralDisorder
June 5, 20205 yr Author Have nothing to check secondary voltage. Spoke with Wells(WVE) tech yesterday who said that the primary resistance is what kills modules. How does the secondary kill them? The '82 FSM specifies Hitachi coil CIT-79, primary resistance 1.04-1.27 OHMs, secondary 7,360-11,040. Their replacement coil is WVE 5C1138 https://www.rockauto.com/en/moreinfo.php?pk=937080&cc=1268311&jsn=356 One I'm running is 1.4, 14,080 Have 2 loose, 1.4, 9,690 and 1.2, 13,520
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