Why is it that a Bosch O2 sensor will last 100k-200k miles, and probably 15+ years, in a new vehicle, but seems to fail fairly quickly in any aftermarket setup? And these cars are typically not being driven in snow and rain. It seems odd to me.
I would think it has to do with the power up protocol. I used to use an Innovate LM-1 and never lost a sensor. Used to start engine then immediately power up to avoid thermal shock.
Lost my first Sensor on my Holley Sniper a couple of months ago. I think that was thermal shock. I gave it two primes on a particularly cold day so the sensor would have been close to fully heated before I hit the key. That one lasted 8 years. I suspect the OEM's have better control on the heat/start protocol. I also suspect the OE tables are so well dialled in that unless it threw an engine light you probably wouldn't even know if you shat one.
