
2003 Toyota Highlander 3.0L MIL Lamp on
This vehicle has 2 catalytic converters at the manifolds and 1 before the front muffler. 1 air fuel sensor before each front converter and only 1 downstream oxygen sensor after the rear converter. So how are we monitoring cat 1&2? Or is the downstream consider...
FIX posted 3/10/2012
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Message Closed w/Summary
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VIN | JTEHF21A33 |
Engine | 3.0 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / SEFI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Misc. | California Lev |
Trouble Codes
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/Summary
Vehicle Data
2003 Toyota Highlander
VIN | JTEHF21A33 |
Engine | 3.0 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / SEFI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Misc. | California Lev |
Trouble Codes
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |