You might not have the right codes , if you know somebody good at hot-wiring , bypass the ignition and see if you can get it started . Ignition may be bad ? Maybe bad fuel pump , clogged filter or injectors
I have already bypass the ignition by hooking up a push start directly from the battery to the starter and it does start it up no problem but it will not stay running due to the lack of fuel being sent through the injectors the only way to keep it running while after I start it is to keep spraying gasoline from a spray bottle into the manifold
Reset it with vehicle and then check battery codecs for each must match and if that failed you get to wes at Rancho Motor Company Chevrolet answers specialist specific to them.
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