Hi I have a bmw E36 316i. When I drive the engine holds back. I have taken it for a engine diagnostics test and its said ”oxygen sensor exhaust” now it could iether be the sensor or the catalitic converter that needs to b repaced. The car now currently has 171000 mileage. The oxygen sensor on the exhaust was replaced when the car had 118000 mileage and the flange gasket was replaced at the same time, but the service history does not show any replacement of the catalitic converter. I have full service history of my car. So does the sensor need replacement or is it just pointing out that sensor because the catalitic converter needs to be replaced? And once I replace the sensor or cata. Converter would the computer need to be reset again or wil the car drive correctly immediatly?
The car is in the best condition it could ever be in.