Question

2002 Chrysler 300M Special 3.5L with engine codes P0325 and P0158, what are the codes meaning?

Answer 1

P0325 Knock sensor # 1 circuit

P0158 - 02 Sensor Bank 2 Sensor 2 circuit high

When there is a code condition that is circuit high , either this is a poor connection or a open connection of that sensor . Where the 02 sensor is at check the connection. If connection is good replace the 02 sensor, Being sensor 2 this is the downstream or the catalytic monitor sensor.

As for the knock sensor , you need to remove the intake just to access the sensor and this code condition are usually just that a knock sensor that has failed.

Answer 2

P0158 CHRYSLER Code - O2 Sensor 2/2 Circuit High
Read more: https://www.autocodes.com/p0158_chrysler.html

P0325 CHRYSLER Code - Knock Sensor Circuit Malfunction
Read more: https://www.autocodes.com/p0325_chrysler.html