O2 sensor on 2001 Galant

My 2001 Galant 2.3L 4-cyl with auto tells me that the O2 sensor heater circuit is malfunctioning and the code book says that the DTC PO135 refers to Bank 1 Sensor 1.

Am I correct in thinking that means the "front" sensor? I sure do appreciate someone's experience in this area. Thanks.

Reply to
John Smith
Loading thread data ...

To my knowledge, the car has 2 oxygen sensors, front and back. The one in "back" will never set a code because of the job it does. So if there is a code saying oxygen sensor fault, it must be the "front" one.

Reply to
morshedbashir

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.