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2004 Ford F-150 Lariat 5.4L Poor Idle Quality, MIL Lamp on
Posted to Ford Driveability on 1/10/2012 15 Replies

This F-150 has Lean DTC's and A/F and O2 Stuck lean DTC's for both banks. Has a rough idle, occasionally stalls. Restarts no problem and seems to drive fine off idle. Short term fuel trims are maxed out at 45% and still no voltage output from the Oxygen sensor...

15 Replies Received (View Replies)

  Related Documents & Media  2004 Ford F-150 Lariat

 
Message Closed w/FIX

car Vehicle Data

2004 Ford F-150 Lariat

VIN [No VIN Available]
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursIdle

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
P2195Air Fuel Sensor (Bank 1 Sensor 1) Signal Stuck Lean
P2197Air Fuel Sensor (Bank 2 Sensor 1) Signal Stuck Lean
Message Closed w/FIX

car Vehicle Data

2004 Ford F-150 Lariat

VIN [No VIN Available]
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursIdle

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
P2195Air Fuel Sensor (Bank 1 Sensor 1) Signal Stuck Lean
P2197Air Fuel Sensor (Bank 2 Sensor 1) Signal Stuck Lean