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1996 Ford Bronco XL 5.0L MIL Lamp on
Hi Ford techs, My hotline and mitchell manuels have not been helful on this problem, scan data stream looks good, on stft and ltft fuel trim.I was told that this po420 code is a downstream oxygen sensor failure. I have replaced this, with a new oem sensor, But...
FIX posted 2/9/2001
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| VIN | [No VIN Available] |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
| Misc. | 5.0 Liter Sfi |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/FIX
Vehicle Data
1996 Ford Bronco XL
| VIN | [No VIN Available] |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
| Misc. | 5.0 Liter Sfi |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
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