TwinTurbo.NET: Nissan 300ZX forum - First part is which cylinder is having an issue, second
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Subject First part is which cylinder is having an issue, second
     
Posted by jzack on February 23, 2014 at 10:36 PM
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In Reply To does the power balance test cut spark or fuel or both ? (n/m) posted by The Devils Z on February 23, 2014 at 05:51 PM
     
Message part of test verifies that the pack on the cylinder in question hasn't gone bad - if swapping a pack causes the issue to follow where the pack is moved, its the pack. Otherwise its an issue with the circuit driving that coil pack for the cylinder in question.

To really test spark - coil pack is removed but still connected to the harness, spark plug inserted (and grounded) and then a visual inspection of spark (or not) is done while engine is cranking....

     
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