P0134 Saturn -

Question

I am getting codes p0134 and p0134pd... what are the differences between the two codes? Byreplace the c02sensor should it fix both the problems?

Answer 1

P0134  02 sensor circuit no activity (Bank1 Sensor 1)

This is for the upstream 02 sensor or the engine management sensor, when there is no activity the sensor has a open circuit which is a disconnection or its inactive.What you should do is check to make sure that the 02 sensor is not loose which would cause this code condition. The difference between a code that is set or that is Pd (pending) one is a mature code the other is not fully developed,