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1996 Ford Explorer Eddie Bauer 4.0L MIL Lamp on
Posted to Ford Driveability on 8/26/2000

Hi everyone,

I'm confused on this one. Mil light comes on after a real long ride, about 4 to 5 hours. The only code I get out of it is a history code PO420...BNK-1 cat efficiency below limit. I'm thinking O2 sensor, which there are three of, two of which are ...

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Message Closed w/FIX

car Vehicle Data

1996 Ford Explorer Eddie Bauer

VIN 1FMDU34XXT
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursLong Ride

Trouble Codes

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

car Vehicle Data

1996 Ford Explorer Eddie Bauer

VIN 1FMDU34XXT
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursLong Ride

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)