P1131 on an Expedition is a mass air metering error, not to be confused with a mass air sensor. The engine control module cannot see the bank one sensor one O2 sensor switch from lean to rich. Basically, the sensor is either bad or the wiring has a fault or short somewhere between there and the ECM.
Trouble code P1131 means: Lack Of HO2S11 Switches - Sensor Indicates Lean
Trouble code P1131 means: Lack Of HO2S11 Switches - Sensor Indicates Lean
Trouble code P1131 means: Lack Of HO2S11 Switches - Sensor Indicates Lean
Trouble code P1131 means: Lack Of HO2S11 Switches - Sensor Indicates Lean
Trouble code P1131 means: Lack Of HO2S11 Switches - Sensor Indicates Lean
fuel air metering p1131 is code showing up
Trouble code P0125 means: Insufficient Coolant Temp For Closed Loop Fuel Control Trouble code P1131 means: Lack Of HO2S11 Switches - Sensor Indicates Lean
Trouble code P1131 means: Lack Of HO2S11 Switches - Sensor Indicates Lean Trouble code P1132 means: Lack Of HO2S11 Switches - Sensor Indicates Rich
how do you clear a P1000 code on a 2003 ford expedition
Trouble code P1131 means: Lack Of HO2S-11 Switch,Sensor Indicates Lean
how do you fix trouble code p1000 on ford expedition 1997Type your answer here...
code p1406 ford expedtion