Actually my problems have yet to be the sensor as well. I tested both of my sensors after putting in the terminal plug and they both still work.

The one they shipped with mine is still working, and I believe it's the one I have back in the car now. How close do you have it to the turbo(s)? Mine is in the midpipe right under the shifter hole. Granted it probably doesn't get as accurate a reading if it were further forward, but I haven't had any die on me and I'm not using a heat sink either.

+1, but mine is probably just as accurate as the turbo location is. Air leakage would be downstream from the sensor as the pipe it's mounted in is just a solid pipe from the turbo.

I was hoping that this thread would help me make a decision. The one I did find and kinda like is this one from PLX http://www.plxdevices.com/wideband.php . It comes with the Multi gauge. but the bosch sensor. I have a rtek right now and I am still new to it. I am pretty sure my stock O2 sensor took a shit because when I data log I get about 0.02 volts at idle. well most of the time. I can't justify spending 1500 on a sensor. Maybe 250 to 300. I am running less then 10psi with a stock ported engine.