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1999 Ford F-150 4.2L MIL Lamp on
Posted to Ford Driveability on 1/18/2005 19 Replies

hi fello tech :

i am trying to find out a bit more of these two codes .i know what the codes are but just need to know the source of the prob could it be the sensor or the catalyst block .any info on this would be appreciated .Thanks in advance .

phil

19 Replies Received (View Replies)

  Related Documents & Media  1999 Ford F-150

 
Message Closed w/FIX

car Vehicle Data

1999 Ford F-150

VIN 126K468402
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursNot Applicable

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
P0430Catalyst Efficiency Below Threshold (Bank 2)
Message Closed w/FIX

car Vehicle Data

1999 Ford F-150

VIN 126K468402
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursNot Applicable

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
P0430Catalyst Efficiency Below Threshold (Bank 2)