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Help Coils have different ohm readings !

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Old Jun 17, 2015 | 04:33 AM
  #1  
corvet786c's Avatar
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Default Help Coils have different ohm readings !

It all started with getting a P0200 code, I searched the forums and looked for what was stated on fuel inj wiring harness and did not find any exposed wires. Checked fuel inj pulse and they all average about 12v. Fuel inj all ohm about the same and I have new wires and plugs.

These are the original coils with the car about 13 yrs old. Coil packs one side high frequency @ 105 pos neg 68
the other side pack @ 95 pos neg 57

So don't know which side is bad or not. I am using MSD wires and this is on a supercharged vette. Any help would be great Thanks. Comments
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Old Jun 17, 2015 | 01:21 PM
  #2  
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Fuel injector pulses will always look "about" 12V amplitude.
The "information" (fuel mass shot) is in the pulse width,
not pulse height, when you get away from min pulse width
and offset (this is the only aspect dependent on control
pulse voltage).

No idea what you are meaning by coil pack freq numbers.
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Old Jun 19, 2015 | 10:40 AM
  #3  
corvet786c's Avatar
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Nevermind, Thanks Jimmy, I had a faulty injector, I used a 9 volt battery and tested all my injectors for opening and closing and the 1 which had the different sound was the culprit.
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