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2001 Nissan Sentra GXE 1.8L Excessive Emissions
DTC P0420, failed state emission test. This one has a bad catalyst indicated by excessive cycling of the O2 sensor B1S2. But the question I have is why isn't the MIL on? Both Modis scan tool and state machine indicate it is commanded on, but the bulb is not li...
FIX posted 9/27/2005
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Related Documents & Media | VIN | 3N1CB51D51 |
| Engine | 1.8 L / 4 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions |
| Occurs | Always |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed
Vehicle Data
2001 Nissan Sentra GXE
| VIN | 3N1CB51D51 |
| Engine | 1.8 L / 4 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions |
| Occurs | Always |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
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