I had a tune added to my car that would remove sub 02/ EGR/ CAT and now need a smog.I had it removed back to stock software. Now my 02 readiness will not go ready after doing many drive cycles. I can’t pass smog and I’ve changed the 2 upstream o2 sensor and nothing has happened. My fuel trim is over -10% so I’m thinking that maybe the reason for not allowing o2 readiness test. I need help.
Well you should never have had that stuff done. If you live in a place what they do inspections. I don't know what the guy did to eliminate stuff and what he put back. I'm assuming you got a software problem and something was programmed wrong. That's why I advise people never to mess with that stuff on those. Once people start messing with the software all bats are off. There's no saying where they could have screwed up
