Quote:
Originally Posted by bhayes1
Never heard of this, but this sounds exactly like what I have going on. Truck is a 2011 with a 5.3
The light just went back out since I got back home yesterday and did some in-town driving. I'll have to do a little research on the re-learn and see what I come up with.
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Another thing I've run into with that po300 was the 15A fuse that powered my two upstream O2 sensors, it was blown and once I replaced it, my O2 code and misfire code was gone and hasn't come back. It's amazing what can cause issues in these computerized and electronic components.