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2002 Subaru Legacy L 2.5L MIL Lamp on
Still throwing a catalyst code after repairs. Noted yesterday while driving that the fuel trim is normal at idle, but runs at about -16 or -18 at 3500 rpm. Car runs and drives very well. Monitored air fuel ratio sensor and 02 sensor with scope, but not sure wh...
FIX posted 6/18/2016
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Message Closed w/FIX
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10 Replies Received
10 Replies Received
Related Documents & Media | VIN | 4S3BE63592 |
| Engine | 2.5 L / 4 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
| Misc. | Recent Head Gaskets, A/F Ratio Sensor & Cat Converter |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/FIX
Vehicle Data
2002 Subaru Legacy L
| VIN | 4S3BE63592 |
| Engine | 2.5 L / 4 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
| Misc. | Recent Head Gaskets, A/F Ratio Sensor & Cat Converter |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Video