I have changed gas cap, replaced module by gas tank, and replaced EGR on engine and the light still is on. Any help?

Check engine lights on with code u0140

Had all O2 sensors changed out and when it’s plugged in it reads O2 sensor not ready. We have reset the truck by pulling g cables off the battery then driving it for 500-1000 miles and tried to do the constant driving pattern that is mentioned for the test to get the O2 sensors reading and nothing has worked. Could use any other ideas. Thank you

When I fill up my tank, the check engine light comes on. After about 50 miles, the engine light goes out and that's it. No issues during or after the light, only that it comes on. Why does it do this?

O2 sensor heater circuit bank 2 sensor 2 and bank 1 sensor 2 same problem i put new cats to pass smog and still check engine light for the o2 sensor help...

Cylinder #2 miss, runs good sometime but jerks and engine light flashes when trying to drive it

I had some tuning fails in my 2016 ram 1500 hemi 5.7 and have been working at fixing it, first it wouldnt crank, then it wouldnt rev at all with check engine, traction control, and abs light on, then it wouldnt rev past 4k and check engine light was on, and i just worked on fixing all of this and now it says service power steering. None of these “mechanical issues” were here before tuning. So it has to be mostly electrical.