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G7 Computers -- Good or Bad

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Old Feb 20, 2022 | 03:01 PM
  #1  
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JimmyRoach
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G7 Computers -- Good or Bad

I trying to find a good repair shop for my 2004 f350 SD 6.0 to repair my PCM, The FICM took a 18V spike and burned it out, and now I think I need to have the PCM check,, I keep getting PO611 error code just running KOEO test with ForScan, and all 8 glow plug error code is also present. the PCM send a msg to the Glow plug module for the module to send voltage to the glow plug, but if the PCM is not sending the msg to the glow plug module, most likely then the pcm is bad
 
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Old Feb 20, 2022 | 03:20 PM
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bismic
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Do you know where did the 18V came from?
 
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Old Feb 20, 2022 | 04:33 PM
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JimmyRoach
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18 V spike

I installed a larger wire from the alternator to battery and left the control wire was disconnected from Alternator is what I think happen

https://www.ford-trucks.com/forums/1...or-wiring.html

I wonder if I fried my glowplug control module

 
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