
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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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) |