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2004 Toyota Sienna LE 3.3L MIL Lamp on
Toyota experts Help. This van has these 2 codes. I know that the sensor has failed. My question is, could the sensor failure cause the p0420? Thanks alot,
FIX posted 9/23/2009
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Message Closed w/FIX
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Related Documents & Media | VIN | 5TDBA23CO4 |
| Engine | 3.3 L / 6 cyl / GAS |
| Trans | 5-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
Trouble Codes
| P0136 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction |
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/FIX
Vehicle Data
2004 Toyota Sienna LE
| VIN | 5TDBA23CO4 |
| Engine | 3.3 L / 6 cyl / GAS |
| Trans | 5-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
Trouble Codes
| P0136 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction |
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
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