TwinTurbo.NET: Nissan 300ZX forum - Did you move the suspect coil pack to another cylinder
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Subject Did you move the suspect coil pack to another cylinder
     
Posted by jzack on February 27, 2010 at 1:23 PM
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In Reply To continuity test PTU posted by Jiro on February 27, 2010 at 01:18 AM
     
Message bank just to verify it's working OK (I realize you did a resistance check on the coil pack)? Moving it elsewhere verifies the dead cylinder issue doesn't follow the coil pack...

FYI: Pretty easy to check for a working coil pack and/or that the PTU is telling it to fire. Unplug from spark plug but leave connected to harness. Insert a spare spark plug (any type will do or pull it from the car) and ground it with a length of wire. Observe for spark while engine is cranked....

2nd thing for the suspected bad cylinder -- did you run a resistance check on the injector? I'd do the spark plug test first as a "for sure or not" verification on the coil pack....since it's really easy to run.

     
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