What wideband controller/sensor are you using and how often are you swapping the sensors? I have a 30-0300 with the lsu 4.9. Usually after about a year of tuning i notice a slight sensor drift and replace. My ntk sensors i just calibrate and keep tuning. Poorly built/unknown builds gets the aem while the nice, known, running builds gets the afr500v2.
I have a lsu 4.9 sensor on my AEM wideband that's been installed in my truck for like 5 years and 20,000+ miles. It's still pretty accurate even with ton of cold starts, couple hundred times of me remote starting the truck in the winter with temps between -10 and 30 degrees. Plus I go between regular fuel and E85 pretty often.
I should probably replace it soon, just haven't yet.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
I have wondered how one would even know when the WBO2 is lying. How do you notice "sensor drift"? How are you checking the validity? Why not re-calibrate the lsu? I know it's easy to spot a severely jacked up WBO2 or even a NBO2 but one that is "drifting" or a few tenths to a half point off, how would you even know? In terms of lambda, if the actual is .95 and the reading is 1.0, I think it's fairly difficult to pick up on that unless you know the engine very well or you run a sanity check periodically with a known good dyno unit?
The last couple vehicles it was in it did not agree with the narrowbands, off rougly 3%. My sensors gets lots of abuse while tuning. This one in particular has seen hours of misfires while diagnosing spark/injector issues. No longer trust it.
AEM 30-0334 Got almost 3yrs out of it and it completely gave up the ghost about a week ago. Ol buddy from AEM thinks a new sensor will fix it, but i have my doubts as the buttons on the gauge doesn't respond well. Of course i haven't had a need to touch them in what time i've owned it, but i'm hoping he's right. It's on the way..
I have decided to get rid of my 30-0300 since i got the ballenger v2 can. It is on the ebay currently.
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