homemade mil eliminators??

Let me start by saying that I have NO experience with MIL eliminators. So take this with a grain of salt.

Looking at the electrical schematic, I'm skeptical. I'm first of all assuming that the two white wires are power (one to heat the O2 sensor, one to power the sensor), the black is ground, and the grey is the feedback up to the computer. If that is correct, then this little circuit seems a bit useless to me. The resistor is of good enough size that it will kill off the majority of the voltage coming from the sensor. It's been a while since I took all those electrical engineering courses, but this is a simple RC circuit, that should will only affect the output signal from the O2 sensor.

I've never cut open an MIL eliminator to see how they work, so I can't say for sure if this will work or not. My gut reaction is that this will not work, especially considering how sensitive our S197 computers are. For about $3.00 worth of parts, I'd say it's a least worth trying, so long as you modify the O2 sensor wire, not your factory harness.... Perhaps you can provide some valuable info to others on the boards. Personally, I'd just buy the standard eliminators online, OR better yet, just turn off your rear O2 sensors with your tuner.

All mil eliminators are are resistors, to make the computer think the o2s and cats are working properly. You pay 60-100 for them because they are plug and play. But you can do the same by wiring the correct resistors in line.