Posts Tagged: bypass an O2 sensor

What’s the best way to bypass an O2 sensor?

O2 spacers rarely work, but some simulators do You can bypass an O2 sensor as long as we’re talking about the post-cat O2 sensor. When people ask this question it’s usually because they’re getting a P0420 or P0430 catalytic converter code and they want to pass an emission test without replacing the cat converter. To do that, they want the post-cat sensor to show a flat waveform to the ECM. If your emission test includes a visual inspection and you install a spacer, you’ll automatically fail the test. So be … Read More