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1999 Ford F-250 Lariat 5.4L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on
Posted to Ford Driveability on 7/16/2014 13 Replies

PID readings: Load=17%, Baro=149Hz, 13 PSI, LTFT banks 1 & 2= 25%, MAF= .9 volts, O211 & 12= 0 volts, O221 is switching, 22=.6 volts, STFT 1 & 2= -3% to 3%. Coolant was low, topped off, leaking from radiator. No HCs present in cooling system, oil level is good...

13 Replies Received (View Replies)

  Related Documents & Media  1999 Ford F-250 Lariat

 
Message Closed w/Summary

car Vehicle Data

1999 Ford F-250 Lariat

VIN 2FTPX28L0X
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
P0301Cylinder 1 Misfire Detected
P0308Cylinder 8 Misfire Detected
Message Closed w/Summary

car Vehicle Data

1999 Ford F-250 Lariat

VIN 2FTPX28L0X
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
P0301Cylinder 1 Misfire Detected
P0308Cylinder 8 Misfire Detected