O2 sensor questions
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Joined: Aug 2023
Posts: 56
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From: Salt lake city
O2 sensor questions
Hey guys, working on my 2001 c5 base. I just did a transmission and clutch and now i’m trying to balance out my fuel trims. The previous owner had put the long tube headers on so it wasn’t me that did the install. Where the upstream 02 sensors plug in, they have a new harness that takes them from being that flat 4 pin connector to the square 4 pin connector like the downstream ones are. My downstream ones are tuned out so i’m not to concerned about them. I’m just wondering what 02 sensors can I use? Do the downstream 02 sensors behave the same as the upstream 02 sensors? The factory upstream ones are no where near as long to reach the hole on my headers.
