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Re: Slow 02 response 2013 Silverado 5.3 4X4
Posted to Technical Discussion Forum on 1/23/2020 15 Replies

I can't find the colour and believe there are only two connectors. I think the one you want is a 73 pin connector, cavity #20 with a red/white wire coming from the fuse, always hot. The other connector is a bit smaller (67 pin) Login to read more.

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