Hello, a month ago I bought a used K12 Built. 2007, automatic, retired vehicle with 27,000 km. After two weeks the car partly did not accelerate at all, when I pressed the accelerator pedal, partly nothing happened, and from time to time it started to jerk at the traffic light. Engine control light went on. Error code: P0132, heated oxygen sensor 1 bank 1. Diagnosis in the Nissan workshop: Lambda probes and allegedly Kat defective —> Estimate 2.90€. I replaced the Lambda probe in front of Kat yesterday (by one of Bosch) and deleted the error code. As a result, the problems were reduced, but the engine control light went on again after a few kilometers, now the first error code was added to P0138 (heated oxygen sensor 2). In addition, the fuel consumption with 9-10 liters is still too high. The values of the Lambda probe 1 look normal, though, don’t you think? (have a screenshot attached while driving). Can it be that the new Bosch probe doesn’t work together with the Lambda after Kat? How would you proceed? Would you now switch the Lambda to Kat. Can I take a cheap one or should I take one from Bosch now? If the error codes don’t disappear afterwards – would you install a new cat? I’ve read, it can also be on the LMM. Just catch a n with the screws on cars and I am grateful for every tip