Some vehicles may exhibit diagnostic trouble code P0420 indicating a possible catalyst system efficiency...
Toyota technical service bulletin EG00299 for 1999 Toyota Sienna.
- Bulletin number
- EG00299
- Component
- Engine and engine cooling: engine: gasoline
- Summary
- Some vehicles may exhibit diagnostic trouble code p0420 indicating a possible catalyst system efficiency below threshold condition. Tt
Owners of these vehicles have filed 39 complaints in the engine category.
Vehicles covered
- Toyota Sienna 1999 1999
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