
1998 Ford F-150 Lariat 4.6L MIL Lamp on
Four months ago we replaced both front O2 sensors after checking for vac leaks,fuel pressure &[...] came back today with same codes P0171&174 A/F rato too lean at max rich [...] checked everything we could think of and followed flow chart from [...] we missing...
FIX posted 3/17/2005
![]()
iATN Members:
Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle (View Replies)23 Replies Received(Hide Replies)23 Replies Received
|
Message Closed w/FIX
|
VIN | 2FTZX1768W |
Engine | 4.6 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / SEFI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
P0174 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
1998 Ford F-150 Lariat
VIN | 2FTZX1768W |
Engine | 4.6 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / SEFI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
P0174 | Fuel System Too Lean (Bank 2) |