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1996 Ford F-150 Eddie Bauer 4.9L MIL Lamp on
MIL comes on, checked codes, has code PO420 [...] BANK 1. Seems to run fine. We have cleared codes, but same code always resets. At hot idle the HOS12 (downstream HOS) switches nicely. Should it be closer to flat line if converter is working? Both upstream...
FIX posted 3/5/1999
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| VIN | 2FTEFI5Y5T |
| Engine | 4.9 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Cruise |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
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Vehicle Data
1996 Ford F-150 Eddie Bauer
| VIN | 2FTEFI5Y5T |
| Engine | 4.9 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Cruise |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
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