Toyota RAV4
P0420
The P0420 code indicates that the catalytic converter's efficiency is below the threshold set by the vehicle's manufacturer. This issue is common in the Toyota RAV4 Fifth Generation (2019-present) and may lead to increased emissions and potential engine performance issues.
60 SolutionsP-CodePowertrain
P
Error Code Type
Powertrain
Components
3 affected
Exhaust SystemFuel SystemEngine
Symptoms
10 common
- •Check engine light illuminated
- •Decreased fuel efficiency
- •Engine stalling or rough idling
- +7 more
Most Affected Generations
2 generations
XA50
49
XA40
11
Top Affected Components
3 components
Exhaust System
57
Engine
2
Fuel System
1
Severity Levels
2 levels
high
43
medium
17
Quick Facts
447
Total Solutions
3
Affected Components
10
Common Symptoms
2
Generations
All Solutions
Showing 60 of 447 solutions for error code P0420 across all generations.