So I had the scan tool pretty much plugged in monitoring every time I drove. The O2 sensor seems to be oscillating like it should through town. Going back home from school...did a good 20 miles on the highway...roughly 75MPH and the readings were going between .68V - .72V. Seems pretty normal. The long term fuel trim was at 1.55% while the short term fuel trim was hanging around ~-3%.

On the Sunday drive back with the O2 sensor stuck at .06V, the LTFT was ~35% while the STFT was at -20%.

I guess the only way to replicate is by driving for 100 straight miles.

 

For clairty the point of my comments was not aimed that the brand does not do what it should; rather from what I have seen of them; they fail.. way to early.. with out reason.

 

So, my friend was working on his father-in-law's 2001 4.7L. So I asked if we could test drive on the highway with the scantool. The voltage readings were oscillating perfectly like it should. I find mine get stuck at .7V over steady 45MPH.

So...biting the bullet, after digging and digging into the internet, I find more and more that Bosch and Dodge aren't exactly a match made in heaven. Some get lucky and find that slice of heaven...At least in the sense of oxygen sensors.

I found out that people recommend NTK (NGK) 23511 pre-cat oxygen sensor. I tracked one for $75 on the internet, so I'm taking that one. 1 year warranty...why not? They say it's OE style and it's a direct fit, which is good; I won't have to reattach the old connector this time.

 

The unfortunate thing is most will wright reviews of bad experiences more than from good experiences so even though Bosch may be a great product all it takes is a few bad reviews to turn people away from something and like anything there will always be some bad or defective units in every batch so you may say on average you may expect a 2% failure rate or poor performance rate.

Does this mean Bosch is a bad or poor quality product no?

 

I don't know, but I haven't found a single post that had something bad to say about ntk.