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1997 Ford Ranger XL 4.0L Poor Idle Quality, MIL Lamp on
Posted to Ford Driveability on 4/9/2003 16 Replies

we have gone through the all data flow of diagnoses for codes 171 and 174. sometimes the mil will lite immediatly sometimes it takes about 30 miles. we have cleaned the throttle body which was filthy. the idle is not always rough . if you let it sit for 20 min...

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  Related Documents & Media  1997 Ford Ranger XL

 
Message Closed w/FIX

car Vehicle Data

1997 Ford Ranger XL

VIN IFTCRI5X4V
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursIntermittently
Misc.Xtra Cab 4X4

Trouble Codes

171lean condition bank 1
174lean condition bank 2
Message Closed w/FIX

car Vehicle Data

1997 Ford Ranger XL

VIN IFTCRI5X4V
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursIntermittently
Misc.Xtra Cab 4X4

Trouble Codes

171lean condition bank 1
174lean condition bank 2