
Re: Slow 02 response 2013 Silverado 5.3 4X4
That circuit is fed from fuse 12 in the UBEC. I would back probe pin 20 at the ECM and see if B+ is getting there Louie. Login to read more. ![]()
iATN Members:
Login to read this message and participate Auto Repair Pros: Join iATN to read this message and others Vehicle Owners: Find a nearby iATN member to repair your vehicle (View Replies)9 Replies Received(Hide Replies)9 Replies Received |