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2015 Ford F-150 XLT 2.7L Excessive Emissions, Poor Idle Quality, Cuts out, Stall, Poor Fuel Economy
Posted to Ford Driveability on 5/21/2025 16 Replies

Runs very rich, had no upstream O2 response. replaced O2 sensors, got response then started running Very rich again. Checked all sensors, within range except fuel trims would not change, even after introducing large vacuum leak.

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car Vehicle Data

2015 Ford F-150 XLT

VIN 1FTEX1CP7F
Engine2.7 L / 6 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / GDI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Cuts Out, Stall, Poor Fuel Economy
OccursAlways

Trouble Codes

P0131Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage
P0151Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage
P0C2A
P2196Heated Oxygen Sensor (Bank 1 Sensor 1) Biased Rich
P2198Fuel Quantity Solenoid Circuit Short To Voltage
Open Help Request

car Vehicle Data

2015 Ford F-150 XLT

VIN 1FTEX1CP7F
Engine2.7 L / 6 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / GDI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Cuts Out, Stall, Poor Fuel Economy
OccursAlways

Trouble Codes

P0131Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage
P0151Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage
P0C2A
P2196Heated Oxygen Sensor (Bank 1 Sensor 1) Biased Rich
P2198Fuel Quantity Solenoid Circuit Short To Voltage