It means the bank 1 oxygen sensor is not switching like it should. Sometimes this means the sensor is bad, sometimes it means the MAF sensor is dirty. If the oxygen sensor has a lot of miles on it (more than 100,000) it's probably worn out.
P1131 - Manufacturer control fuel air metering - Swirl Control
If check engine light is on, have a parts store read the code. It will tell you there is a random misfire and usually what cylinder is misfiring. Replace the coil pack for that cylinder and all will be well.
There is a problem with the SRS...have a dealer check it.
Code PO412 for your Lincoln means that the engine is currently misfiring, could be due to the timing is off, poor fuel, if your running regular in there, stop!, start putting anything higher then 91 octane, so 91 and up, but i wouldn't go past 93, that's what i run in my 01 continental.
I don't think you can bypass them.
Trouble code P1131 means: Lack Of HO2S11 Switches - Sensor Indicates Lean
711925
fuel air metering p1131 is code showing up
The Lincoln Navigator keypad entry code can be found in the back of the owners manual. You can only use the keypad entry code once and then you will have to enter your personal entry code.
P1131 = Insufficient switching O2 Bank 1 Sensor 1 Sensor/lean. Could be a B1 S1 O2 sensor going bad.
Trouble code P1131 means: Lack Of HO2S-11 Switch,Sensor Indicates Lean
Enter the keyless entry master code, then hit the 1/2 button. Enter your new code. The door locks will cycle to indicate that the code has been accepted.
Trouble code P1131 means: Lack Of HO2S11 Switches - Sensor Indicates Lean
Trouble code P1131 means: Lack Of HO2S11 Switches - Sensor Indicates Lean
Each vehicle that has keyless entry has its own code
P1131 code does not show up in the book. There is a code for P0131 which is the heated 02 sensor or circuit fail.
Trouble code P1131 means: Lack Of HO2S11 Switches - Sensor Indicates Lean