P0134 and p0154 are present on a 2002 Mercedes-Benz SLK320. What is the likely problem?

Question

P0134 and p0154 are present on a 2002 Mercedes-Benz SLK320 3.2L. What is the likely problem? Is the issue both the O2 sensor or?

Answer 1

Hi there,

It would be odd for both of these sensors to fail at the same time. This indicates to me there is a wiring problem or possibly a bad fuse that supplies power. Could also be the signal wire to the computer or the computer itself causing the problem

Answer 2

P0134 Mercedes-Benz Code - O2 Sensor Circuit No Activity Detected Sensor 1 Bank 1
Read more: https://www.autocodes.com/p0134_mercedes-benz.html

P0154 Mercedes-Benz Code - O2 Sensor Circuit No Activity Detected Bank 2 Sensor 1
Read more: https://www.autocodes.com/p0154_mercedes-benz.html