Since having installed headers a couple of months ago, there is no pre-cat to make the rear downstream o2 report a pleasing reading to the PCM. There is also no bung for a downstream o2 sensor on the front header or y-pipe. I've read around some and saw people making mention to welding in a couple of bungs past the catalytic converter and simply extending the wiring harness from the downstream sensors to make this work.
Has anyone done this, and what were your results? My 2000 SVT is pretty much stock, save a clutch, flywheel and exhaust system. Would I be able to simply weld in a couple of bungs past the CAT and place my downstream sensors there and not have any more check engine light and poor fuel economy as a result? Will the main cat work well for this, or will I also need to mil eliminators spliced in to this?
Thanks,
Has anyone done this, and what were your results? My 2000 SVT is pretty much stock, save a clutch, flywheel and exhaust system. Would I be able to simply weld in a couple of bungs past the CAT and place my downstream sensors there and not have any more check engine light and poor fuel economy as a result? Will the main cat work well for this, or will I also need to mil eliminators spliced in to this?
Thanks,