2003 1500 - O2 sensor
March 20th, 2009, 12:08 PM
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2003 1500 - O2 sensor
Hi, got an service engine light on my 03' Avalanche and scanned code PO141... O2 sensor heater circuit Bank 1 Sensor 2.
I bought the new sensor, can you tell me where the Bank 1 Sensor 2 is physically located? I know that there are several under there.
Also do I need to do anything to reset the read out after changing the sensor?
Thanks
Joe B
I bought the new sensor, can you tell me where the Bank 1 Sensor 2 is physically located? I know that there are several under there.
Also do I need to do anything to reset the read out after changing the sensor?
Thanks
Joe B
March 23rd, 2009, 9:59 AM
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O2 sensor
Well, it looks like I have to answer my own question... may be of help to someone else with this problem.
After doing some research I found the answer and fixed the problem. My 03' Avelanch has four O2 sensors, two on each engine bank, one ahead of the cat and one after. So, the bank 1 sensor 2 is located on the #1 (left) engine bank after the cat. And the sensor turned out NOT to be the problem, I had a broken wire in the harnes going to the sensor heater circuit. ie. no 12 VDC to the sensor.
Joe B
After doing some research I found the answer and fixed the problem. My 03' Avelanch has four O2 sensors, two on each engine bank, one ahead of the cat and one after. So, the bank 1 sensor 2 is located on the #1 (left) engine bank after the cat. And the sensor turned out NOT to be the problem, I had a broken wire in the harnes going to the sensor heater circuit. ie. no 12 VDC to the sensor.
Joe B
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