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ls1man · 11-29-2014, 09:10 PM

I have 5.3 out of a 01 1500 silverado with stock ecm and modified wiring harness do i need to turn off vats before trying to start?

11-29-2014, 09:10 PM	#1
ls1man Registered User Join Date: Oct 2013 Location: norman okla Posts: 49	5.3 conversion???? I have 5.3 out of a 01 1500 silverado with stock ecm and modified wiring harness do i need to turn off vats before trying to start?