Honda Pilot
P0420
The check engine light (CEL) is illuminated on a Honda Pilot, indicating that the vehicle's onboard diagnostic system has detected an issue requiring attention.
60 SolutionsP-CodePowertrain
P
Error Code Type
Powertrain
Components
2 affected
EngineExhaust System
Symptoms
10 common
- •Check engine light illuminated
- •Vehicle may exhibit rough idle
- •Decrease in fuel efficiency
- +7 more
Most Affected Generations
1 generation
YF4
60
Top Affected Components
2 components
Exhaust System
56
Engine
4
Severity Levels
2 levels
high
42
medium
18
Quick Facts
325
Total Solutions
2
Affected Components
10
Common Symptoms
1
Generations
All Solutions
Showing 60 of 325 solutions for error code P0420 across all generations.