oxygen sensor
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Technical Single Turbo O2 sensor install and data
Thought I'd make a thread to collect some data on O2 sensor options for the single turbo peeps. As everyone knows, 2-bank fueling logic forces ST kits to place the pre-cat O2s in the manifold between the head and turbine, exposing them to extremely harsh high temperature and positive pressure... -
Secondary O2 sensors, tuned, still needed?
On my last car, even though the 2nd cat codes were turned 'off' I needed the o2 sensor installed and plugged in to maintain proper fuel trims, not only did it need to be there but it could not be in a 'extended o2 tricker' housing. Had to be in the exhaust flow directly. I would get +12%-+18%... -
The Effect of Replacing O2 Sensors - Results
Full FBO and MHD Wedge Tune. Was getting super duper shitty gas mileage - we talking 12mpg... Replaced all four o2 sensors and mileage shot back up like a rocket. Now 18-20 city and 23-24 highway. This is with down pipes. So if there is anyone who is wondering if changing o2 sensors after...