could P0430 Chevrolet - cause P0327

Question

I have replaced both o2 sensor and knock sensors and I am still getting a fault code P0327 and P0430

Answer 1

Hi there,

This should not cause the 430 code. With that code and since you have replaced the O2 sensors, you need to replace the bank 2 catalytic converter. As for the knock sensor code, you need to check for 5 volts to the sensors, also check that you have a clean block where they bolt on. With the type of sensor they are, dirt or a bad connection or if the sensor isn't tight enough, it can cause the code to come back.