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  1. dtroyk

    Bosch Double Fire 2x2 Coil Pack (0221503407) - Bench Test Help

    Question How much out of spec. indicates need to replace coils? Bosch specs are Primary resistance = 500 mΩ, secondary resistance = 13.3 kΩ Coil bench test results for resistance: 4 Pack A Primary Pin 1 -3 = 2.8 Pin 1-2 = 2.4 *Pin 2-3 = 2.3 Secondary 1 - 4 = 13.63 2 - 3 = 13.9 4 Pack...
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