1997 Mercury Cougar Two Wheel Drive Automatic 104000 miles
I used a scan tool and the following error codes show: Po161 with freeze frame data; P0155; P0141; P0136; P0135 and pending codes P0135; P0136: P0141; P0155; P0161 they refer to O2 Heater Circuit. Does this indicate the O2 sensors are defective or is their some other problem that is causing the DTC codes?
The O2S monitor is solid and the status indicates "complete".
have the same problem?
Thursday, May 21st, 2009 AT 11:26 PM