I got an 04 Nissan Sentra and I got a (P1273 Nissan - Air Fuel Ratio Sensor 1 Lean Shift Monitoring Bank 1) code that popped up on it. Looking to see what the probable cause for this code to pop up? Is this a rare code that popped up on this car? There's no noticeable symptoms going on with the car.
I did clear the code and it came back 7 miles later. Also forgot to mention the car has a small exhaust leak on the flex pipe under the car, But was told by 1 person the code is not on because of that. The engine light went on 3 weeks after I noticed the small exhaust leak, (if it is because of the exhaust leak)?
Would I be able to test the possible problems with a Obd2 scan tool with live data or some other way? Because I have read it could be 02 sensor, MAF sensor and have heard that you can get reads for that off an obd2 scan tool with live data?
I did clear the code and it came back 7 miles later. Also forgot to mention the car has a small exhaust leak on the flex pipe under the car, But was told by 1 person the code is not on because of that. The engine light went on 3 weeks after I noticed the small exhaust leak, (if it is because of the exhaust leak)?
Would I be able to test the possible problems with a Obd2 scan tool with live data or some other way? Because I have read it could be 02 sensor, MAF sensor and have heard that you can get reads for that off an obd2 scan tool with live data?
Aug 3, 2015 at 1:19 PM
