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Old 09-23-2022, 01:25 PM   #3
ctrlz


 
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP
Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 2,426
A couple of links which may help. There is a note about one of the sensors shorting to ground and causing all the other modules which rely on a 5V reference to go "off-line."
https://www.underhoodservice.com/ecm...cation-issues/
https://rustyautos.com/obd-wont-connect-to-ecu/
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