Engine Builders talk.
I don't know a whole lot about this electric carburetor wizzardry, but leaner is meaner. Maybe if that o2 was causing it to drink more fuel before it actually went out. Or maybe now its leaning it up to much when it did go out.
It went out when I had a new upstream cat welded in. Im going to get some fuel trim figures this afternoon on my way home and see what I come up with. Im not throwing any code other than the no reading from my bad o2 though.







