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2004 - 2008 Ford F150 General discussion on the 2004 - 2008 Ford F150 truck.

multiple misfires

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Old Dec 22, 2020 | 06:41 PM
  #31  
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Originally Posted by jawsfree
Is there a schematic for the pins? I am not sure how to do this.
One important thing to do, whenever you are ohm'ing out circuits. Disconnect the battery, both posts(this is the idiot proof way). Or, make sure you're only taking readings on a completely unplugged circuit. Voltage in a circuit will throw off any ohm readings.
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Old Dec 22, 2020 | 09:57 PM
  #32  
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Originally Posted by mustangGT90210
One important thing to do, whenever you are ohm'ing out circuits. Disconnect the battery, both posts(this is the idiot proof way). Or, make sure you're only taking readings on a completely unplugged circuit. Voltage in a circuit will throw off any ohm readings.
I disconnected the negative battery terminal and did a continuity test from the COP connector to the PCM. I tested several COPS and all checked out. I then turned the key on and check each COP connector for power and all checked out. I guess it is time to replace the computer.
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