again a COP question

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Old 06-10-2009, 10:09 PM
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again a COP question

I believe I have a bad COP, can you unplug an injecter to see which one is bad (no codes) Does anyone know if this will work????
 
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Old 06-11-2009, 06:30 PM
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Hmm. I don't understand what unplugging an injector would do to identify a bad COP.

If the COP is not working at all, you'll get a code. I've found that checking a COP with a VOM does not usually reveal a problem as compared to a new one.

So if it were me, and since you have a pickup instead of a van (really hard to replace any COP), I would either get a new COP or get a used COP from a junk yard and just start at #1 and swap them out until you find the bad one.

If you can stand it doing what it is doing, eventually it will throw a code, usually under high load.
 
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Old 06-12-2009, 07:09 AM
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Unplugging a injector will set a code for that injector and the engine will run on 7 cylinders. That will tell you nothing about the cop.
The misfire detection on Tritons isn't the most responsive but will pick up as the problem progresses. Is the miss at low rpms or high rpms?
If you are at 100k on milage I would change all the plugs and cops.
 
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Old 06-20-2009, 07:14 AM
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no. you unplug the cop to see if there is a difference in how it runs.
 




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