
2004 Lincoln Navigator 5.4L Poor Idle Quality, MIL Lamp on
vehicle had a misfire initially, and scanned for codes and had p0171, and p0172 for both banks being lean. left side head was removed and # 7 hole had exhaust valve burnt thru. Now the vehicle has a rough idle and no misfire but p0171 code comes up right away....
FIX posted 12/23/2008
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Message Closed w/FIX
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VIN | 5LMFU28R14 |
Engine | 5.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / tune port |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, MIL Lamp On |
Occurs | Always, Idle |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
Message Closed w/FIX
Vehicle Data
2004 Lincoln Navigator
VIN | 5LMFU28R14 |
Engine | 5.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / tune port |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, MIL Lamp On |
Occurs | Always, Idle |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |