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2004 Ford F-150 Lariat 5.4L Misfire, MIL Lamp on
Posted to Ford Driveability on 2/11/2010 7 Replies

THIS ONE HAS ME CONFUSED, THE FUEL TRIM WILL RISE ON BOTH BANKS WHILE DRIVING UNDER HEAVY LOAD. BOTH O2 SENSOR WILL GO UP TO .89V AND FLAT LINE THERE AND YET THE FUEL TRIM I HAVE SEEN GO OVER 20% ON BOTH BANKS. THE F/T IS PERFECT @ IDLE SO I DON'T SUSPECT A VA...

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  Related Documents & Media  2004 Ford F-150 Lariat

 
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car Vehicle Data

2004 Ford F-150 Lariat

VIN 1FTP14524K
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / GAS
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursUnder Load, Intermittently

Trouble Codes

P0174Fuel System Too Lean (Bank 2)
Message Closed w/FIX

car Vehicle Data

2004 Ford F-150 Lariat

VIN 1FTP14524K
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / GAS
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursUnder Load, Intermittently

Trouble Codes

P0174Fuel System Too Lean (Bank 2)