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1999 Ford E-250 Econoline 5.4L Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on
Posted to Ford Driveability on 3/18/2005 16 Replies

checked fuel pressure ,good scan test shows po171&174 in memory baro reading is low 27.1 maf sensor reads 1.68 gps. with koeo tried changing maf sensor with known good one and readings were the same has anyone tried to reflash pcm with this type of problem?

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  Related Documents & Media  1999 Ford E-250 Econoline

 
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car Vehicle Data

1999 Ford E-250 Econoline

VIN 1FTPE24L7X
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / multiport
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp On
OccursAlways

Trouble Codes

171lean
174lean
Message Closed

car Vehicle Data

1999 Ford E-250 Econoline

VIN 1FTPE24L7X
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / multiport
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp On
OccursAlways

Trouble Codes

171lean
174lean