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2001 Ford Expedition XLT 4.6L Poor Fuel Economy, MIL Lamp on
Posted to Ford Driveability on 6/15/2011 21 Replies

I have been racking my brain on this one. It seems to run fine although the customer swears it runs poorly. I checked mode 6 and it showed a 2% missfire on cyl 4, however I am not getting any codes. The MAF and Baro values are good. The long term fuel trims ar...

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  Related Documents & Media  2001 Ford Expedition XLT

 
Message Closed w/Summary

car Vehicle Data

2001 Ford Expedition XLT

VIN 1FMRU16W01
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
P0175Fuel System Too Lean (Bank 2)
Message Closed w/Summary

car Vehicle Data

2001 Ford Expedition XLT

VIN 1FMRU16W01
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
P0175Fuel System Too Lean (Bank 2)