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2015 Ford F-150 Lariat 3.5L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Poor Fuel Economy, MIL Lamp on
Posted to Ford Driveability on 11/5/2025 6 Replies

Came in with code for o2 sensor b1s1 dead and o2 sensor b2s1 stock rich, changed the b1 o2 sensor, both started showing stock rich codes. Tried a air charge sensor- no results, unplugging the map sensor - no results, opened up the purge valve - seemed like...

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car Vehicle Data

2015 Ford F-150 Lariat

VIN 1FTEW1EG7F
Engine3.5 L / 6 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation, Stall, Poor Fuel Economy, MIL Lamp On
OccursAlways
Misc.Eco Twin Turbo

Trouble Codes

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 Lariat

VIN 1FTEW1EG7F
Engine3.5 L / 6 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation, Stall, Poor Fuel Economy, MIL Lamp On
OccursAlways
Misc.Eco Twin Turbo

Trouble Codes

P2196Heated Oxygen Sensor (Bank 1 Sensor 1) Biased Rich
P2198Fuel Quantity Solenoid Circuit Short To Voltage