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2002 Ford Econoline E350 Super Duty 5.4L Lean Bank 1
Posted to Ford Driveability on 2/5/2004 6 Replies

Hello all,

Veh came in with p0171 bank 1 lean. replaced both o2 sensors. no help. ecm shows correction for condition in short and long term fuel trim. FYI these ford cng vehicles only have 2 o2 sensors and the misfire monitor is disabled.

vac leak test was n...

6 Replies Received (View Replies)

 
Message Closed w/FIX

car Vehicle Data

2002 Ford Econoline E350 Super Duty

VIN 1FDZE45M42
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsLean Bank 1
OccursAlways
Misc.Cng Fueled, Oem

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
Message Closed w/FIX

car Vehicle Data

2002 Ford Econoline E350 Super Duty

VIN 1FDZE45M42
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsLean Bank 1
OccursAlways
Misc.Cng Fueled, Oem

Trouble Codes

P0171Fuel System Too Lean (Bank 1)