02 Sensor Codes

[swanny1970]

Hi All

 

Took the car for a diagnostic yesterday to a guy I know. He ran a check to see if any fault codes came up, one did PO132 02 Sensor Circuit High Voltage (Bank 1, Sensor 1). He cleared the ECU and told me to drive the car for several miles and bring it back. Took the Gal back today and another diagnostic was done. PO132 came up again along with PO135 02 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1). The mechanic told me it could be fried wires, relay etc, but just wondering what I should be looking for and where the relays and wires would be? Done a quick google and found a post on another site regarding the PO135 code. It stated that a leak at the inlet manifold could cause this fault code? Just wondering if that is true, as had the gasket replaced on this not long prior to this problem starting. Could either of these fault codes cause the engine to "hunt" at idle? Mechanic also told me that there seems to be a restriction and thinks it could be the Cat. Again, could these fault codes mimic a restriction? Sorry for all the questions, hoping I will be able to see a light soon at the end of a very long, dark tunnel!

 

Kind regards

 

Peter