My OBD II reader shows "link error" after mechanic
makes CK engine light go off.
My hubby's car has been to mechanic for check engine light. Code P1133. I told him it needed a new O2 sensor. But, of course, I don't know anything. He'd rather donate to the mechanic's charity than to listen to me. FInally after visit #3 they changed the O2 sensor. Light went out. Now when I hook my OBD II reader to it it shows a link error. What could they have done to the car.? My husband has not been able to get the car to pass inspection because of the check engine light. Now what will happen?